Question

Which circle has a radius that measures 10 units?

A) Circle D is shown. A line segment goes from one point to another point on the circle and has a length of 10.

B) Circle F is shown. A line segment goes from one point to another point on the circle and goes through point F. It has a length of 20.

C) Circle G is shown. A line segment goes from one point to another point on the circle and goes through point G. It has a length of 10.

D) Circle H is shown. A line segment goes from one point to another point on the circle and has a length of 20.

Answer 1

B) Circle F is shown. A line segment goes from one point to another point on the circle and goes through point F. It has a length of 20.

Explanation:

A segment that goes through the center of the circle and that has its ends on the circle is a diameter. The radius is half the length of the diameter.

A chord through the center of circle F with a length of 20 units means circle F has a radius of 10 units.