Question

In the circle below, if the measure of arc ACB = 240 °, find the measure of

Answer 1

Step-by-step explanation:

From the image below, we have that

`arc\angle ACB=240^0`

Find,

`\angle B`

Arc angle

`arx\angle ABD=360-240=120^0`

From the image below, we will have the final answer to be

Hence,

Using the Alternate segment theorem,

`\angle B=60^0`

OPTION C is the correct answer