Question

in the adjoining figure if angle AOC and angle COB form a linear pair then the value of x is what

Answer 1

2x + ( x- 15 ) = 180
2x + x - 15 = 180
3x = 180 -15 =165
x = 165/3 = 55

angle AOC = 2 * 55 = 110
angle COB = 55 + 15 = 70

Answer 2

Step-by-step explanation:

Given - AOB is a straight line

To find the value of x.

solution - angle AOC + angle BOC =180°

=>( 2x)°+(x+15)°=180°

=> 2x+x+15=180°

=> 3x = 180-15

=> 3x = 165

=> x= 165/3

=> x = 55°

Therefore, 2x =2×55 =110°

x = 55+15 =70°