Question

how to solve this question? ​

Answer 1

Step-by-step explanation:

45+3x = 180°. ( linear pair angle)

3x=180-45

3x=135°

x=135° ÷ 3

x= 45

Answer : c) 45°

Answer 2

AB = 180
AOC = 45
COB = 3x
COB = 180 - 45 = 75
3x = 75
x = 75 / 3 = 25 answer