Question

Is a triangle with the side lengths 4 feet, 7. 5 feet, and 8. 5 feet a right triangle? Why or why not? ​

Answer 1

Yes

Explanation:

You can test if a triangle is right-angled by using Pythagoras' Theorem.

So:

`4^2 + 7.5^2 = 8.5^2`

16 + 56.25 = 72.25

They do in fact add up so this triangle is right angled.