A circle has a radius of 7 cm. What is its area (approximately)?

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Multiple Choice

A circle has a radius of 7 cm. What is its area (approximately)?

Explanation:
Area of a circle is found with A = π r^2. With a radius of 7 cm, r^2 is 49, so A = π × 49. Using π ≈ 3.1416, that gives A ≈ 3.1416 × 49 ≈ 153.94 cm^2. So the approximate area is about 153.94 cm^2, which matches the value given. The other numbers would come from circles with different radii (for example, solving A = π r^2 ≈ 100, 200, or 75 gives radii around 5.64 cm, 7.98 cm, and 4.89 cm, respectively), not a radius of 7 cm.

Area of a circle is found with A = π r^2. With a radius of 7 cm, r^2 is 49, so A = π × 49. Using π ≈ 3.1416, that gives A ≈ 3.1416 × 49 ≈ 153.94 cm^2. So the approximate area is about 153.94 cm^2, which matches the value given. The other numbers would come from circles with different radii (for example, solving A = π r^2 ≈ 100, 200, or 75 gives radii around 5.64 cm, 7.98 cm, and 4.89 cm, respectively), not a radius of 7 cm.

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