Question

A triangle has side lengths of 7 in., 9 in., and 11 in. Determine whether this is a right triangle and why.

Answer 1

It's not a right triangle, because already 7^2 = 7x7 which is 49 so...

Explanation:

Answer 2

Not a right triangle. See below for my reasoning.

Explanation:

If this is a right triangle, then the sum of the squares of the two shorter sides will equal the square of the longest side: 7^2 + 9^2 = 11^2 => 49 + 81 = 121 But this is false.