Right Triangle Calculator
Calculate hypotenuse, legs, area, and perimeter using the Pythagorean theorem (a² + b² = c²).
cm
One leg of the right triangle
cm
The other leg of the right triangle
Pythagorean Theorem
a² + b² = c²
Hypotenuse
0 cm
c = √(a² + b²) = √(0 + 0) = 0
Area
½ × a × b
0 cm²
Perimeter
a + b + c
0 cm
Angles
α, β, 90°
0° / 0°
Side A
0 cm
Side B
0 cm
Hypotenuse
0 cm
Documentation
Understanding Right Triangles
A right triangle has one angle that is exactly 90 degrees. The side opposite to the right angle is called the hypotenuse, and the other two sides are called legs.
Pythagorean Theorem
3, 4, 5 • 5, 12, 13 • 8, 15, 17
Tip: Common Pythagorean triples: (3,4,5), (5,12,13), (8,15,17), (7,24,25).
Frequently Asked Questions
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