Question

What is the value of x in the diagram of Circle O below? *

Answer 1

180 - 120 = 60
60 degrees

Answer 2

60 degrees

Explanation:

As we know that a circle is 360 degrees, and as line AB bisects the circle, then the resulting "semi-circle" is 180 degrees. As we know that angle AC is 120 degrees, it's simple subtraction, to find that 180-120 is 60. Therefore, the value of x must be 60 degrees.

Hope this explanation helped!