Pythagorean theorem calculator

One of our users asked why we do not have calculator on Pythagorean theorem.
Indeed, we've already have plenty calculators about triangles but none about right triangle. Well, may be because of it's simplicity. Anyway, if someone lazy to calculate by yourself - here it is. As usual, some theory can be found below the calculator

Side length of a right triangle

Side A

Side B

The sides aretwo legs leg and hypotenuse

Calculation precision

Digits after the decimal point: 2

Calculate

Side length

 

save Save extension Widget

Pythagorean theorem

The Pythagorean theorem, also known as Pythagoras' theorem states that the square of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides.

If we denote hypotenuse as c and two legs as a and b, we can write the following equation, often called the Pythagorean equation:

From this we can easily get the formulas for the uknown value.
In the calculator above, if you select "two legs" option, then you are solving for the hypotenuse (c), and the hypotenuse is

If you select "leg and hypotenuse" option, then you are solving the remained leg, and if it is a, then it equals to

If it is b, then it equals to

P.S. Wikipedia says there are 367 ways to prove Pythagorean theorem.