Circles With and Without Coordinates — Test

Question 6 • Mathematics II

Which circle has a radius that measures 10 units?

Answer

Image with description A circle has center D. A segment connecting two points on the circle does not pass through the center and is labeled 10.

Image with description A circle has center H. A segment connecting two points on the circle does not pass through the center and is labeled 20.

Image with description A circle has center F. A segment connecting two points on the circle passes through the center and is labeled 20.

Image with description A circle has center G. A segment connecting two points on the circle passes through the center and is labeled 10.

Explanation

A segment that passes through the center and has both endpoints on the circle is a diameter. The radius is half the diameter, so a diameter of 20 units gives a radius of 20 ÷ 2 = 10 units. Choice C shows a circle with a diameter of 20 units.

AI-written and checked against the verified answer.

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