Question

9. Find x in each of the following, in which OD is the bisector of the angle BOC. ​

Answer 1

Step-by-step explanation:

It's is given that OD is the bisector of the angle BOC.

What is a bisector?

In simple words, a bisector divides an angle into two equal parts.

(i)

We know supplementary angles,

x + y = 180

120 + x + x = 180

120 + 2x = 180

2x = 60

x = 60/2

x = 30

(ii)

x + x + 20 = 180

2x + 20 = 180

2x = 160

x = 80

Answer 2

Answer:

I hope you will get your answer.