Question

solve if you have common sense tricky

Answer 1

since AOC and BOC forms linear pair
therefore,
x+8x=180
9x=180
=>x=20and 8x=8×20=160

Answer 2

HERE IS YOURS SOLUTION;

◆ In the given figure;

Angle AOC = x

&

Angle BOC = 8x

◆ So, by applying Linear Pair, We get;

Angle AOC + Angle BOC = 180°

=> x + 8x = 180°

=> 9x = 180°

=> x = (180 ÷ 9)°

=> x = 20°

◆ So, Angle AOC = X =20°

Now,

◆ Angle BOC = 8x = 8×20 = 160°

★ So, Angle AOC = 20° & Angle BOC = 160° ★

HOPE IT HELPS