A circle has radius 3. What is its area? Use pi=3.14.

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Multiple Choice

A circle has radius 3. What is its area? Use pi=3.14.

Explanation:
Area of a circle is found with A = πr^2. Plugging in radius 3 gives r^2 = 9, so A = 3.14 × 9 = 28.26. The area is 28.26 square units. The other options don’t match when using π = 3.14 and r = 3; they’d correspond to different radii (for example, a value of 25.13 would come from π × 8, implying r ≈ 2.83, and 31.42 would come from π × 10, implying r ≈ 3.16).

Area of a circle is found with A = πr^2. Plugging in radius 3 gives r^2 = 9, so A = 3.14 × 9 = 28.26. The area is 28.26 square units. The other options don’t match when using π = 3.14 and r = 3; they’d correspond to different radii (for example, a value of 25.13 would come from π × 8, implying r ≈ 2.83, and 31.42 would come from π × 10, implying r ≈ 3.16).

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