Find the radius of a circle if the diameter is 8.

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Multiple Choice

Find the radius of a circle if the diameter is 8.

Explanation:
In a circle, the radius is half the diameter. The diameter goes straight across the circle through the center, while the radius goes from the center to the edge. With a diameter of 8, the radius is 8 divided by 2, which is 4. So the distance from the center to the edge is 4 units. The other values come from misapplying the relationship: 8 would be the diameter, not the radius; 2 is a quarter of the diameter; and 16 is twice the diameter.

In a circle, the radius is half the diameter. The diameter goes straight across the circle through the center, while the radius goes from the center to the edge. With a diameter of 8, the radius is 8 divided by 2, which is 4. So the distance from the center to the edge is 4 units. The other values come from misapplying the relationship: 8 would be the diameter, not the radius; 2 is a quarter of the diameter; and 16 is twice the diameter.

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