Which best explains why this triangle is or is not a right triangle?
36 in.
15 in.
39 in
This triangle is not a right triangle: 392 +152 + 362.
This triangle is not a right triangle: 392 +362 152.
This triangle is a right triangle: 362 + 392 - 152.
This triangle is a right triangle: 362 +152 - 392.
