Right Triangle Calculator
Calculate all sides, angles, area, and perimeter of a right triangle. Enter any two of three sides (two legs or one leg and the hypotenuse).
Enter any two of three sides
How to Use the Right Triangle Calculator
- Enter the required dimensions (length, width, radius, height, etc.).
- The area, volume, or other geometric value is computed instantly.
- Review the result along with the formula used.
- Adjust dimensions to compare different scenarios.
使用例
- •Calculating dimensions for home improvement or DIY projects.
- •Solving geometry problems for school or professional exams.
- •Estimating material quantities needed for construction work.
- •Planning layouts and designs with precise measurements.
計算式
Pythagorean theorem: c = √(a² + b²). Area: S = ½ × a × b. Angles via atan.
よくある質問
How do you find the hypotenuse?
Use the Pythagorean theorem: c = √(a² + b²), where a and b are the legs.
How do you find a missing leg?
If you know the hypotenuse c and one leg a, the other leg is b = √(c² − a²).
How are the angles calculated?
The angle opposite leg a is α = atan(a/b) in degrees. The other acute angle is β = 90° − α.
Why must the hypotenuse be the longest side?
In a right triangle, the hypotenuse is opposite the 90° angle, making it always the longest side.