Question

Which best explains why this triangle is or is not a right triangle?

Answer 1

Answer:

D

Step-by-step explanation:

If it is a right triangle, by pythagorous theorem, 39^2 = 36^2 + 15^2

or, 36^2 + 15^2 - 39^2 = 0

Answer 2

The right answer is D I calculated the question