Compute the area of a circle with radius 7.

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Multiple Choice

Compute the area of a circle with radius 7.

Explanation:
Area of a circle is π times the radius squared. With radius 7, you square it to get 49, then multiply by π to get 49π. That is the area. The other numbers slip into common mistakes: 14π is the circumference, not the area, since circumference is 2πr = 14π. 7π misses squaring the radius, and 98π comes from misplacing a factor or doubling in a way that doesn’t match πr^2.

Area of a circle is π times the radius squared. With radius 7, you square it to get 49, then multiply by π to get 49π. That is the area. The other numbers slip into common mistakes: 14π is the circumference, not the area, since circumference is 2πr = 14π. 7π misses squaring the radius, and 98π comes from misplacing a factor or doubling in a way that doesn’t match πr^2.

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