Answer:
Step-by-step explanation:
Check if the lengths of the sides follows the Pythagorean theorem.
9² + 12² ≟ 15²
81 + 144 ≟ 225
225 = 225
Triangle ABC is a right triangle.
I don't think they are equivalent. try it yourself
Answer:
it is -4
Step-by-step explanation:
but the answer is not on there so the answer will be D.
