The measure of arc OS is (4x-18)

What is the value of x?

Answer:49.5

The value X=49.5

Step-by-step explanation:

Given:

Arc of 4x-18 is formed.

To Find:

Value of x

Solution:

Consider a circle in which arc (OS) is formed,

with OS as diameter so the angle subtended by them is 180 degree.

... (by property of semi circle)

4x-18 = 180 degrees.

4x=198

x=198/4

x=49.5 degrees.

Hence the value of X=49.5 degrees