Question

Given the side measures below determine whether or not triangle is acute right or obtuse 12 9 13

Answer 1

Hi there!

Let's use the pythagorean theorem to figure this out.

WORK:
${12}^{2} + {9}^{2} = {13}^{2}$
$144 + 81 = 169$
$225 > 169$
The triangle is ACUTE.

Hope this helps!! :)