Question

The three interior angles of a triangle have a sum of __________. A. 45o B. 90o C. 120o D. 180o

Answer 1

D: 180 !!

Explanation:

Angles in Triangle Add to 180° ... A straight line falling on parallel straight lines makes alternate angles equal to one another, the exterior angle equal to the interior and opposite angle, and the interior angles on the same side equal to two right angles.

Answer 2

D. 180

Why? because the interior angles always add up to 180°