Question

Write and solve an addition or subtraction equation to find the missing angle measure

Answer 1

90°

Explanation:

The three angles : 45°, n°, and 45° will form a line.

A property of a line is that it creates a 180° angle.

• ⇒ 45 + n + 45 = 180
• ⇒ n + 90 = 180
• ⇒ n = 90°