Right angle triangle calculator
Author: t | 2025-04-25
Inradius of Right Angled Triangle calculator uses Inradius of Right Angled Triangle = (Height of Right Angled TriangleBase of Right Angled Triangle-sqrt(Height of Right Angled Triangle^2Base of Right Angled Triangle^2))/2 to calculate the Inradius of Right Angled Triangle, The Inradius of Right Angled Triangle formula is defined as the radius of the circle inscribed in Discover how to calculate the angle of a right triangle using our simple and easy-to-use calculator. Get accurate results now! Calculators. Biology; Angle of Right Triangle Calculator Smaller angle of the triangle: Right Angle: 90 degrees: The angle making the triangle a right triangle: Obtuse Angle 90 degrees: Not applicable in right
Angle of Right Triangle Calculator
B and height h.Perimeter:The perimeter is the sum of the lengths of all sides:How to Solve a Triangle1. Find the Missing AngleUse the angle sum property:2. Find Side Lengths Using Pythagoras TheoremFor right triangles:3. Apply Trigonometric Ratios4. Heron’s Formula (For Area)Area = √[s(s - a)(s - b)(s - c)]where a, b, and c are sides of the triangle.Introducing the Triangle CalculatorOur Triangle Calculator is an advanced tool designed to help you solve triangles efficiently and accurately. It is particularly useful for:Finding the value of in a triangle.Calculating missing angles and side lengths.Solving trigonometric problems step by step.Key FeaturesStep-by-Step Solutions:The calculator breaks down the solution process, ensuring you understand each step.Versatility:Handles all types of triangles and a variety of problems, including right triangles and oblique triangles.Ease of Use:Simply input the given values, and the calculator does the rest.Free Access:Available online without any charges or subscriptions.Example Problem Solved with the Triangle CalculatorExample 1: Finding the Missing AngleA triangle has two angles measuring 50o and 60o. Find the third angle.Solution: Let, third angle be x∴ x + 50o + 60o = 180o [Sum of angles of a triangle is 180o]Or, x = 180o - 50o - 60oOr, x = 70oApplications of Triangles in Real LifeArchitecture and Engineering:Triangles provide structural stability in bridges, buildings, and towers.Navigation:Used in GPS systems and map-making.Art and Design:Triangular patterns are common in aesthetic designs.Physics:Analyze forces, motion, and energy using triangle principles.Why Use the Triangle Calculator?Accuracy:Get precise solutions for any triangle problem.Efficiency:Save time with quick calculations.Learning Tool:The step-by-step approach helps Triangles are fundamental shapes in geometry, with countless applications in mathematics, engineering, and everyday problem-solving. Whether you're trying to find the value of in a triangle, calculate missing angles, or solve for side lengths, understanding the principles of triangles is essential. To simplify these calculations, we offer a Triangle Calculator that provides step-by-step solutions, making it a valuable tool for students, teachers, and professionals alike.What is a Triangle?A triangle is a three-sided polygon with three angles. It is the simplest closed figure in geometry and forms the basis of many mathematical concepts. Triangles are classified based on their sides and angles.Types of Triangles by SidesEquilateral Triangle: All three sides are equal, and each angle measures .Isosceles Triangle: Two sides are equal, and the angles opposite these sides are also equal.Scalene Triangle: All three sides have different lengths, and all angles are different.Types of Triangles by AnglesAcute Triangle: All angles are less than .Right Triangle: One angle is exactly , with the side opposite this angle known as the hypotenuse.Obtuse Triangle: One angle is greater than .Properties of TrianglesAngle Sum Property:The sum of the interior angles of a triangle is always 180o.Example: If two angles are 60o and 70o, the third angle is: 50oExterior Angle Property:An exterior angle is equal to the sum of the two non-adjacent interior angles.Pythagoras Theorem (For Right Triangles):h² = p² + b². Here, p and b are the legs, and h is the hypotenuse.Area of a Triangle:½ × b × h. For a triangle with baseAngle Of Right Triangle Calculator
The Inverse Trigonometric Ratios If you know the lengths of two sides of a triangle, you can find the angle θ using the inverse trigonometric functions: sin-1 (also called arcsin) for sinecos-1 (also called arccos) for cosinetan-1 (also called arctan) for tangent Inverse Trigonometric Function Example Suppose you have a right triangle with: Adjacent side (to angle θ) = a = 5Opposite side (to angle θ) = b = 3 You want to find the angle θ. The tangent of an angle in a right-angled triangle is the ratio of the length of the opposite side to the length of the adjacent side, so: tan(θ) = opposite/adjacent = b/a = 3/5 To find the angle θ, you can use one of the inverse trigonometric functions: Using a calculator, you can then determine: In other words, the angle θ is approximately 30.96 degrees, making it also an acute angle. Pythagorean Theorem Another essential concept in trigonometry is the Pythagorean theorem, which Pythagoras, a philosopher in ancient Greece devised. It states: where a and b are the lengths of the legs (opposite and adjacent sides), and c is the hypotenuse. The Pythagorean theorem is useful when you know the two sides of a right triangle and are trying to find a missing side. Pythagorean Theorem Calculator Solving for Missing Sides and Angles To solve for missing sides, you can rearrange the trigonometric equations. For example: sinθ = opposite/hypotenuse ⟹ opposite = sinθ × hypotenuse Using a calculator, you can compute the sine, cosine or tangent of the angle θ, and then multiply by the known side length to find the unknown side. Example Calculation Consider a right-angled triangle where the hypotenuse is 10 units, and the angle θ is 30 degrees. To find the opposite side, you would use the sine function: sin30° = opposite/10 ⟹ opposite = 10 × sin30° Since sin30° =0.5: Trigonometric Identities Trig identities are equations involving trigonometric functions that are true for every value of the variable. They include fundamental identities like this basic Pythagorean identity: Other common identities include angle sum and difference identities, double angle identities, half-angle identities, reciprocal identities and co-function identities. These identities are useful when you're trying to simplify trigonometric expressions and solving equations. Real-life Applications It's easy to view trigonometry as just a theoretical concept, but that's far from the case. It actually has practical applications across many different fields, including engineering, physics and astronomy, and even in everyday problem-solving scenarios like navigation and construction. Engineers use trigonometric ratios to analyze forces in structures like bridges and buildings, or to design mechanical systems in engines. With these ratios, physicists can determine the trajectory, range and height of objects in projectile motion, and astronomers can calculate the necessary angles for precisely aligning their telescopes to specific celestial objects or events. We created this article in conjunction with AI technology, then made sure it was fact-checked and edited by a HowStuffWorks editor.. Inradius of Right Angled Triangle calculator uses Inradius of Right Angled Triangle = (Height of Right Angled TriangleBase of Right Angled Triangle-sqrt(Height of Right Angled Triangle^2Base of Right Angled Triangle^2))/2 to calculate the Inradius of Right Angled Triangle, The Inradius of Right Angled Triangle formula is defined as the radius of the circle inscribed in Discover how to calculate the angle of a right triangle using our simple and easy-to-use calculator. Get accurate results now! Calculators. Biology; Angle of Right Triangle Calculator Smaller angle of the triangle: Right Angle: 90 degrees: The angle making the triangle a right triangle: Obtuse Angle 90 degrees: Not applicable in rightRight Triangle Side And Angle Calculator (triangle Calculator)
Before using the Pythagoras Calculator, it's important to note that all angles in this case are measured in degrees, not radians.A right-angled triangle has three angles: one 90-degree angle and two acute angles, which we'll call Angle A and Angle B. The sum of the two acute angles is always 90 degrees, giving a total of 180 degrees.To use the calculator, input the value of one known dimension of the triangle: the length of the adjacent side, the opposite side, or the hypotenuse. The adjacent side is the side that forms the angle with the hypotenuse, while the opposite side is opposite to the given angle.The Pythagorean theorem states that the sum of the squares of the adjacent and opposite sides is equal to the square of the hypotenuse. The formula is c2 = a2 + b2, where c is the hypotenuse and a and b are the adjacent and opposite sides, respectively.Changing the value of one dimension will affect the values of the other dimensions. For example, changing the value of Angle A will affect the value of Angle B, the length of the adjacent side, the length of the hypotenuse, and the area of the triangle. Similarly, changing the value of Angle B will affect the value of Angle A, the length of the opposite side, the length of the hypotenuse, and the area of the triangle.If you change the length of the opposite side, it will affect the values of both Angle A and Angle B, as well as the length of the hypotenuse and the area of the triangle. Changing the length of the adjacent side will also affect the values of Angle A and Angle B, the length of the hypotenuse, and the area of the triangle. Finally, if you change the length of the hypotenuse, it will affect the length of the opposite and adjacent sides, as well as the area of the triangle. On this page is an inverse trigonometric functions calculator, which computes the angle input when you know the result of any of the trigonometric functions. It works for: inverse sine (arcsine), inverse cosine (arccosine), inverse tangent (arctangent), inverse cotangent (arccotangent), inverse secant (arcsecant), and inverse cosecant (arccosecant).Inverse Trigonometry Functions CalculatorUsing the Trigonometric Functions CalculatorTo use the tool to find the results of the inverse trigonometric functions for a given value, enter the value, choose your units, and compute.Value: Enter the result of any of the trigonometry functions to reverseOutput Degrees or Radians: Choose if you'd like the output to show the angle in radians or degreesWhere results are undefined, you'll see "NaN".What are the inverse trigonometric functions?The inverse trigonometric functions are the inverse of the trigonometric functions, which are defined in terms of the unit circle. Alternatively, the trigonometric functions can be defined using a right triangle angles under 90 degrees (square).Right Triangle Diagram (CC By-SA 3.0 Wikimedia)In terms of the right triangle, the trigonometric functions are defined as:sine: opposite/hypotenusecosine: adjacent/hypotenusetangent: opposite/adjacentcotangent: adjacent/oppositesecant: hypotenuse/adjacentcosecant: hypotenuse/oppositeTherefore, the inverse or "arc" function takes the ratio and inverts it to tell you the angle.If you instead know the angle, use the trigonometric functions calculator to find the result or ratio.Trigonometric FunctionsWe've built individual tools for computing the trigonometric functions and their inverses. Find them all here: PKPK started DQYDJ in 2009 to research and discuss finance and investing and help answer financial questions. He's expanded DQYDJ to build visualizations, calculators, and interactive tools.Right Angle Triangle Trig Calculator
That is touching the angle but is not the hypotenuse. Q: What does it mean to solve a right triangle?A: When you solve a right triangle, or any triangle for that matter, it means you need to find all missing sides and angles. Therefore, you will use Trig Ratios, the Triangle Sum Theorem, and/or the Pythagorean Theorem to find any missing angle or side length measures.In the video below, you’ll progress through harder examples involving trig ratios, calculating missing side lengths and angles, inverse trig, and much more!Video – Lesson & Examples 1 hr 34 minIntroduction to Trigonometric Ratios (Sine, Cosine, Tangent)00:00:26 – Understanding SOH-CAH-TOAExclusive Content for Member’s Only 00:17:38 – Find the three trig ratios for both acute angles (Examples #1-4)00:39:35 – Complete the table using Soh-Cah-Toa (Examples #5-6)00:53:12 – How to solve for an angle using a calculator? (Examples #7-12)01:05:22 – Solve the right triangle by finding all missing sides and angles (Examples #13-14)01:18:37 – Solve the word problem involving a right triangle and trig ratios (Example #15)01:27:34 – Solve for x by using SOH CAH TOA (Examples #16-19)Practice Problems with Step-by-Step Solutions Chapter Tests with Video Solutions Get access to all the courses and over 450 HD videos with your subscriptionMonthly and Yearly Plans AvailableGet My Subscription NowStill wondering if CalcWorkshop is right for you?Take a Tour and find out how a membership can take the struggle out of learning math.Calculate.co.nz – Right Angle Triangle Calculator
With this calculator you can calculate the area, the perimeter, the altitudes and the lengths of the diagonals of a parallelogram. The calculation path is always given as well. It can be selected to how many decimal places the calculated values should be rounded and further calculations are always performed with the rounded values.To calculate all values of a parallelogram at least 3 input values are needed. Often, however, one does not want to calculate all values, but only a certain one and for this 2 input values are often sufficient. For example, the area can be calculated from a side length and the corresponding altitude. Therefore, it is also possible with this calculator to select that only 2 input values should be specified..ContentsFormulasWhat is a parallelogram?Interior anglesAltitudesAreaPerimeterDiagonal lengthsParallelogram lawFormulasAnglesα + β = 180°Altitudesha = b ∙ sin(α)hb = a ∙ sin(β)AreaA = a ∙ haA = b ∙ hbPerimeterP = 2 ∙ (a + b)Diagonal lengthse = a² + b² − 2 ∙ a ∙ b ∙ cos(β)e = a² + b² + 2 ∙ a ∙ b ∙ cos(α)f = a² + b² − 2 ∙ a ∙ b ∙ cos(α)f = a² + b² + 2 ∙ a ∙ b ∙ cos(β)Parallelogram lawe² + f² = 2 ∙ (a² + b²)What is a parallelogram?A parallelogram is a quadrilateral in which opposite sides are parallel. Due to the parallelism of the opposite sides, opposite sides also have the same length and opposite angles are equal.In the figure above, the sides with side lengths a and c are equal in length and parallel to each other, and the sides with side lengths b and d are equal in length and parallel to each other. Furthermore, the angles α and γ are equal and the angles β and δ are equal.Interior anglesThe sum of the interior angles of a quadrilateral is always 360°. Since α = γ and β = δ holds, the sum of α and β must be 180°.α+β=180°AltitudesIf you draw an altitude ha from the side with the length a in such a way that one end of the altitude lies in point C (and if necessary you also draw an extension of the line AB), then a right-angled triangle is formed. Line CB is the hypotenuse of this triangle and has length b. The angle in the right triangle at point A is either α or β. The opposite of this angle is the altitude ha.For the acute angles in a right triangle holds:Depending on whether the angle at B in the right triangle is α or β, either sin(α) = or sin(β) = applies.For angles between 0° and 180°, sin(angle) = sin(180° − angle) applies. In a parallelogram, the sum of α and β is 180°. Thus β = 180° − α applies. From this follows sin(β) = sin(180° − α) = sin(α). Thus, regardless of whether the angle in the right triangle at the corner B is α or β, the following applies:If you. Inradius of Right Angled Triangle calculator uses Inradius of Right Angled Triangle = (Height of Right Angled TriangleBase of Right Angled Triangle-sqrt(Height of Right Angled Triangle^2Base of Right Angled Triangle^2))/2 to calculate the Inradius of Right Angled Triangle, The Inradius of Right Angled Triangle formula is defined as the radius of the circle inscribed inRight Angle Triangle Calculator - NumberBau
SOHCAHTOA is an essential mnemonic when you start learning trig, whether you're trying to find the opposite leg, the adjacent leg or the measures of a triangle's acute angles. zizou7 / Shutterstock The mnemonic device SOHCAHTOA helps budding mathematicians remember the trigonometric functions sine (sin), cosine (cos) and tangent (tan), which they need to solve for triangles' missing sides and angles. But to really understand how this memory tool is useful, it's necessary to first refresh yourself on the basics of right-angled triangles, which are the main focus in trigonometry. Contents What Are Right Triangles? Trigonometric Functions and Ratios Using the Trigonometric Ratios Using the Inverse Trigonometric Ratios Pythagorean Theorem Solving for Missing Sides and Angles Trigonometric Identities Real-life Applications What Are Right Triangles? A right-angled triangle, also known as a right triangle, has one angle that is exactly 90 degrees. The side opposite this right angle is the longest side, called the hypotenuse. The other two sides are referred to as the opposite side and the adjacent side, depending on their relationship to the angle being measured or referenced. Trigonometric Functions and Ratios Mathematicians need a way to solve for and relate the angles of a triangle to the length of its sides. To do this, they use the fundamental math functions called trigonometric functions, which have applications across science, engineering and everyday life. Defined based on the ratios of the side lengths in a right-angled triangle, the trigonometric functions are: Sine (sin θ): The ratio of the length of the opposite side to the hypotenuse (O/H).Cosine (cos θ): The ratio of the length of the adjacent side to the hypotenuse (A/H).Tangent (tan θ): The ratio of the length of the opposite side to the adjacent side (O/A). These ratios depend on the angle θ, an acute angle (less than 90 degrees) in the triangle. What Does SOHCAHTOA Stand for? Here’s how the mnemonic device SOHCAHTOA helps mathematicians and math students remember the trigonometric functions and ratios. SOH: Sine = Opposite / HypotenuseCAH: Cosine = Adjacent / HypotenuseTOA: Tangent = Opposite / Adjacent Using the Trigonometric Ratios Mathematicians have to calculate the unknown side lengths or angles in a right triangle all the time. To do this, they apply the trigonometric functions. For example, if you know the value of angle θ, you can find the two sides of a right-angled triangle. Trigonometric Function Example Suppose you have a right triangle with: Angle θ = 30 degreesAdjacent side = a = 5 You want to find the length of the opposite side b. The tangent of an angle in a right-angled triangle is the ratio of the length of the opposite side to the length of the adjacent side, so: tan(θ) = opposite/adjacent You know that: θ = 30Adjacent side a = 5 So, using the tangent function looks like this: You know from trigonometric tables or by using a calculator that: So: Now, to find b: The length of the opposite side b is approximately 2.885 units. UsingComments
B and height h.Perimeter:The perimeter is the sum of the lengths of all sides:How to Solve a Triangle1. Find the Missing AngleUse the angle sum property:2. Find Side Lengths Using Pythagoras TheoremFor right triangles:3. Apply Trigonometric Ratios4. Heron’s Formula (For Area)Area = √[s(s - a)(s - b)(s - c)]where a, b, and c are sides of the triangle.Introducing the Triangle CalculatorOur Triangle Calculator is an advanced tool designed to help you solve triangles efficiently and accurately. It is particularly useful for:Finding the value of in a triangle.Calculating missing angles and side lengths.Solving trigonometric problems step by step.Key FeaturesStep-by-Step Solutions:The calculator breaks down the solution process, ensuring you understand each step.Versatility:Handles all types of triangles and a variety of problems, including right triangles and oblique triangles.Ease of Use:Simply input the given values, and the calculator does the rest.Free Access:Available online without any charges or subscriptions.Example Problem Solved with the Triangle CalculatorExample 1: Finding the Missing AngleA triangle has two angles measuring 50o and 60o. Find the third angle.Solution: Let, third angle be x∴ x + 50o + 60o = 180o [Sum of angles of a triangle is 180o]Or, x = 180o - 50o - 60oOr, x = 70oApplications of Triangles in Real LifeArchitecture and Engineering:Triangles provide structural stability in bridges, buildings, and towers.Navigation:Used in GPS systems and map-making.Art and Design:Triangular patterns are common in aesthetic designs.Physics:Analyze forces, motion, and energy using triangle principles.Why Use the Triangle Calculator?Accuracy:Get precise solutions for any triangle problem.Efficiency:Save time with quick calculations.Learning Tool:The step-by-step approach helps
2025-04-06Triangles are fundamental shapes in geometry, with countless applications in mathematics, engineering, and everyday problem-solving. Whether you're trying to find the value of in a triangle, calculate missing angles, or solve for side lengths, understanding the principles of triangles is essential. To simplify these calculations, we offer a Triangle Calculator that provides step-by-step solutions, making it a valuable tool for students, teachers, and professionals alike.What is a Triangle?A triangle is a three-sided polygon with three angles. It is the simplest closed figure in geometry and forms the basis of many mathematical concepts. Triangles are classified based on their sides and angles.Types of Triangles by SidesEquilateral Triangle: All three sides are equal, and each angle measures .Isosceles Triangle: Two sides are equal, and the angles opposite these sides are also equal.Scalene Triangle: All three sides have different lengths, and all angles are different.Types of Triangles by AnglesAcute Triangle: All angles are less than .Right Triangle: One angle is exactly , with the side opposite this angle known as the hypotenuse.Obtuse Triangle: One angle is greater than .Properties of TrianglesAngle Sum Property:The sum of the interior angles of a triangle is always 180o.Example: If two angles are 60o and 70o, the third angle is: 50oExterior Angle Property:An exterior angle is equal to the sum of the two non-adjacent interior angles.Pythagoras Theorem (For Right Triangles):h² = p² + b². Here, p and b are the legs, and h is the hypotenuse.Area of a Triangle:½ × b × h. For a triangle with base
2025-04-24The Inverse Trigonometric Ratios If you know the lengths of two sides of a triangle, you can find the angle θ using the inverse trigonometric functions: sin-1 (also called arcsin) for sinecos-1 (also called arccos) for cosinetan-1 (also called arctan) for tangent Inverse Trigonometric Function Example Suppose you have a right triangle with: Adjacent side (to angle θ) = a = 5Opposite side (to angle θ) = b = 3 You want to find the angle θ. The tangent of an angle in a right-angled triangle is the ratio of the length of the opposite side to the length of the adjacent side, so: tan(θ) = opposite/adjacent = b/a = 3/5 To find the angle θ, you can use one of the inverse trigonometric functions: Using a calculator, you can then determine: In other words, the angle θ is approximately 30.96 degrees, making it also an acute angle. Pythagorean Theorem Another essential concept in trigonometry is the Pythagorean theorem, which Pythagoras, a philosopher in ancient Greece devised. It states: where a and b are the lengths of the legs (opposite and adjacent sides), and c is the hypotenuse. The Pythagorean theorem is useful when you know the two sides of a right triangle and are trying to find a missing side. Pythagorean Theorem Calculator Solving for Missing Sides and Angles To solve for missing sides, you can rearrange the trigonometric equations. For example: sinθ = opposite/hypotenuse ⟹ opposite = sinθ × hypotenuse Using a calculator, you can compute the sine, cosine or tangent of the angle θ, and then multiply by the known side length to find the unknown side. Example Calculation Consider a right-angled triangle where the hypotenuse is 10 units, and the angle θ is 30 degrees. To find the opposite side, you would use the sine function: sin30° = opposite/10 ⟹ opposite = 10 × sin30° Since sin30° =0.5: Trigonometric Identities Trig identities are equations involving trigonometric functions that are true for every value of the variable. They include fundamental identities like this basic Pythagorean identity: Other common identities include angle sum and difference identities, double angle identities, half-angle identities, reciprocal identities and co-function identities. These identities are useful when you're trying to simplify trigonometric expressions and solving equations. Real-life Applications It's easy to view trigonometry as just a theoretical concept, but that's far from the case. It actually has practical applications across many different fields, including engineering, physics and astronomy, and even in everyday problem-solving scenarios like navigation and construction. Engineers use trigonometric ratios to analyze forces in structures like bridges and buildings, or to design mechanical systems in engines. With these ratios, physicists can determine the trajectory, range and height of objects in projectile motion, and astronomers can calculate the necessary angles for precisely aligning their telescopes to specific celestial objects or events. We created this article in conjunction with AI technology, then made sure it was fact-checked and edited by a HowStuffWorks editor.
2025-04-25