Question

In the given fig. if LAOB and LCOD are straight line, then find y. ​

Answer 1

Answer:

i think we should apply a rule that is vertical opposite angles....30+y=180

y=180-30=150....but i am not sure it is right or not....

Answer 2

straight line = 180°

7x-30 + 3x-7 = 180°

7x + 3x = 180 + 30 + 7

10x = 217

x = 217/10

x. = 21.7°

substitute 21.7 in x place....°

7(21.7)-30 = 121.9

3(21.7)-7 = 58.1°

total = 180°

58.1° + Y = 180°

Y = 180° - 58.1°

Y = 121.9°

Hope it helps you....☺☺