Question

Unit 7.1 interior and exterior angle of polygon​

Answer 1

x = 73°

Explanation:

The sum of the interior angles of a polygon = (n - 2) × 180°

(where n is the number of sides)

This polygon has 5 sides,

⇒ sum of interior angles = (5 - 2) × 180° = 540°

Therefore,

x + 127 + 112 + 108 + 120 = 540

⇒ x + 467 = 540

⇒ x = 73°