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Right Triangle formulas
5 formulas for Right Triangle, from the Mensuration (2D & 3D) section of the Quantix formula library. Tap 🧮 next to a formula to solve it for any variable with step-by-step working.
| Name | Formula | Note |
|---|---|---|
| Area | A = ½ab 🧮 Solve step by step | |
| Pythagoras | c² = a² + b² 🧮 Solve step by step | |
| Perimeter | P = a + b + c 🧮 Solve step by step | |
| Circumradius | R = c/2 🧮 Solve step by step | |
| Inradius | r = (a + b − c)/2 🧮 Solve step by step |
What the letters mean
| a, b | legs |
| c | hypotenuse |
One angle is 90°.
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