How are the semicircle and the diameter of a circle related?
A semicircle is half of a circle and the diameter of a circle is a straight line joining a point from one end of the circle to a point on the other end of the circle, passing through the center.
Answer: The degree measure of semicircle and diameter is equal.
We will determine how semicircle and diameter are related to each other.
If we cut a circle along its diameter, we get a semicircle. The degree measure of the semicircle is 180° which is the same as the degree measure of the diameter.