A triangle has side lengths 10, 15, and 7. Is the triangle acute, obtuse, or right? Show your work and explain.

Question

I think it's gonna be an obtuse and maybe right....might be wrong...

Answer 1

a = 7, b = 10, c = 15.
a^2 + b^2 = c^2.
49 + 100 = 149. But c^2 = 225. So it is
NOT a rt. triangle.