If a circle has a diameter of 10, what is the radius?

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Multiple Choice

If a circle has a diameter of 10, what is the radius?

Explanation:
The main idea is that the radius is half of the diameter. The diameter is the distance across the circle through the center, and two radii line up to make that full distance. If the diameter is 10, dividing by 2 gives the radius as 5. The other numbers aren’t half of 10, so they don’t fit as the radius.

The main idea is that the radius is half of the diameter. The diameter is the distance across the circle through the center, and two radii line up to make that full distance. If the diameter is 10, dividing by 2 gives the radius as 5. The other numbers aren’t half of 10, so they don’t fit as the radius.

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