Question

PLEASE ANSWER WITHIN 15 MINUTES!

Answer 1

1) 180°(Angle on a straight line)-45°

=135°

2)180°-90°=90°

3)180°-116°=64°

4)180°-(31°+32°)=117°

5)90°-60°=30°

Explanation:

All angles on a straight line is 180°

A right angle is =90°