# Question 926c8

Feb 16, 2018

No.

#### Explanation:

First, remember the Pythagorean Theorem: ${a}^{2} + {b}^{2} = {c}^{2}$ where $c$ is the hypotenuse, or the longest side of the right triangle, and $a$ and $b$ are the other two sides

$\text{Pythagorean Theorem only works on right triangles}$

Therefore, we can try our $4 - 5 - 7$ triangle.

We ask ourselves: Is ${4}^{2} + {5}^{2} = {7}^{2}$? Let's try it out.

=>16+25?49#

=>$41 \ne 49$

Therefore, our triangle is not a right triangle.