Question

What is the value of x? *
60
35
25
5

Answer 1

25° is the correct answer.

Explanation:

(4x+20) +60°=180° [°.° Linear Pairs]

`(4x + 20) + 60° = 180°\\ ⟹ 4x + 20 + 60° = 180° \\ ⟹ 4x + 80° = 180° \\ ⟹ 4x = 180° - 80° \\ ⟹x = (100°)/(4) \\ ⟹25°`

.°. x = 25°