Right triangle calculator

Easy to use calculator to solve right triangle problems. Here you can enter two known sides or angles and calculate unknown side ,angle or area. Step-by-step explanations are provided for each calculation.

Right Triangle Calculator
Input value you know and select what to compute.( show help ↓↓ )
I want to calculate:
view examples ↓↓
Input two elements of a right triangle
use letter r to input square root. Ex: $3\sqrt{2} = \text{3r2} $
leg $ a $
right triangle
leg $ b $
hypotenuse $ c $
angle $ \alpha $
angle $ \beta $
example 1:ex 1:
Find the hypotenuse of a right triangle in which the length of the legs are $18 cm$ and $ \frac{13}{2} cm$.
example 2:ex 2:
Find the angle $\alpha$ of a right triangle if hypotenuse $c = 8 cm$ and leg $a = 4cm$.
example 3:ex 3:
Find the hypotenuse $c$ if $\alpha = 50^{\circ} $ and leg $ a = 8 $.
example 4:ex 4:
Find the area of a right triangle in which $\beta = 30^{\circ}$ and $b = \frac{5}{4} cm$

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