Answer:
The value X=49.5
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