Question

Use the Converse to the Pythagorean Theorem to determine if the triangle below is a right triangle.

State whether or not the triangle is a right triangle.

Answer 1

$3^2 + 9^2=12^2\\9 + 81\\a^2+b^2=90\\c^2= 144\\90\neq 144$Answer: Not a right triangle, as seen as equation to the left

Step-by-step explanation: