What is the area of a circle with radius 7?

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Multiple Choice

What is the area of a circle with radius 7?

Explanation:
Area is found by multiplying pi by the radius squared. With a radius of 7, you square the radius to get 49, and then multiply by pi to get 49π. That is the area in square units. This shows why the radius matters: doubling the radius would quadruple the area, since the radius is squared in the formula. The other values come from either not squaring the radius or omitting pi, which is why they don’t match the actual calculation.

Area is found by multiplying pi by the radius squared. With a radius of 7, you square the radius to get 49, and then multiply by pi to get 49π. That is the area in square units. This shows why the radius matters: doubling the radius would quadruple the area, since the radius is squared in the formula. The other values come from either not squaring the radius or omitting pi, which is why they don’t match the actual calculation.

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