Question

When you are given two sides of a right triangle, how do you find the third side?

Answer 1

Find the third side:

If two sides are given of the right triangle, then use the Pythagorean Theorem to calculate the third side.

The Pythagorean Theorem states that the square of the hypotenuse is equal to the sum of the square of the first side and the square of the second side.

${\left(\text{Hypotenuse}\right)}^2={\left(\text{adjacent}\right)}^2+{\left(\text{opposite}\right)}^2$.

If the any two sides of a right angle triangle are given then the third side can be calculated using Pythagorean theorem.

So, we can calculate the third side when we have two sides of the right triangle.

Hence, calculate the third side by using the Pythagorean Theorem.