Question

3) A diameter divides a circle into two congruent arcs. What is the measure in degrees for each arc?

A. 60°

B. 45°

C. 180°

D. 90°

Answer 1

C. 180°

Explanation:

The degree measure of the arc of a full circle is 360°

A diameter divides a circle into two parts of equal size, so the degree measure of each part is half of the degree measure of a full circle.

360°/2 = 180°