Question

You are asked to draw a triangle using three of the following angles: 0°, 30°, 45°, 55°, 60°, 80°, 90°, 105°. Which triangle cannot exist?

A) 30°, 60°, 90°
B) 45°, 55°, 80°
C) 30°, 45°, 105°
D) 30°, 45°, 55°

Answer 1

D

Explanation:

When you add all the the angles of a triangle, they will end up to be exactly 180 degree. When you add the three numbers A, B, and C end up with 180 degree, but D end up with 130 degree, therefore, D is the triangle that cannot exist.

Hope it helps :D