Find the surface area of a sphere with a diameter 18 cm. Round your answer to the nearest hundredth.

The diameter is 18 cm, so the radius is 18 ÷ 2 = 9 cm. The surface area of a sphere is 4πr², giving 4π(9²) = 324π ≈ 1,017.88 square centimeters. The closest listed choice is 1,017 square centimeters.

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