Posted by Karen on Monday, April 15, 2013 at 9:45am.
A triangle has side lengths 10,15,and 7.Is the triangle acute,obtuse,or right?Explain.

Geometry Part 2  Steve, Monday, April 15, 2013 at 10:49am
if ABC is a right triangle (B = 90°),
7^2 + 10^2 = 15^2
but 149 < 225, so B < 90° and ABC is acute