Question

in the given figure,if AOB is a straight line then angle BOC is
a)80°
b)70°
c)60°
d)20°​

Answer 1

Answer:

a) 80

Step-by-step explanation:

2x + 10 = 80

2x = 80 - 10 = 70

x = 70/2 = 35

AOC = 2x + 30 = 2 * 35 + 30 = 70 + 30 = 100

BOC = 2x + 10 = 2 * 35 + 10 = 70 + 10 = 80

AOC + BOC = 100 + 80 = 180

Hence, BOC = 80