# How do you determine if the lengths #36, 77, 85# form a right triangle?

##### 1 Answer

Jan 16, 2017

Use the Pythagorean theorem. See the entire determination process below:

#### Explanation:

We will use the Pythagorean Theorem to determine if these lengths for a right triangle.

This theorem states, for a right triangle:

Where

Substitute the values into this equation and see if both sides of the equation are equal. If they are the lengths form a right triangle. If they are not equal then they would not form a right triangle.

Because both sides of the equation are equal these lengths do form a right triangle.