Question

1. which of the following are parts of a circles circumference?

a. arc
b. center point
c. radius
d. diameter

Explanation:

An arc is a part of the circumference of a circle. The center point is a fixed point inside the circle, not part of the circumference. The radius is a line segment from the center to the circumference, not part of the circumference itself. The diameter is a line segment passing through the center with endpoints on the circumference, not part of the circumference.

Answer:

A. Arc