Question

In triangle ABC, BC=10 and is the longest side of the triangle.

if AB^2 + AC^2 < 100 then triangle ABC is ______

A. right
B. obtuse
C. acute

Answer 1

B. obtuse

Can't be right because 100 would have to = ab^2 + ac^2

to be acute, ab^2 + ac^2 would have to be greater than 100