Tina is making a cylindrical sandbox that has a radius of 2 feet. She bought 18.84 cubic feet of sand for the sandbox. Which height does she need to make the sandbox to fit all the sand?

The volume of a cylinder is V = πr²h. With radius 2 feet, the base area is about 3.14 × 2² = 12.56 square feet. Divide the sand’s volume by the base area: 18.84 ÷ 12.56 = 1.5 feet. Tina needs a sandbox that is 1.5 feet high, choice D.

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