Question

A gardener uses a tray of 6 conical pots to plant seeds. Each conical pot has a radius of 3 centimeters and a depth of 8 centimeters.

About how many cubic centimeters of soil are needed to plant the full tray? Round to the nearest cubic centimeter.

226 cm3
301 cm3
452 cm3
678 cm3

Answer 1

Volume of one cone = (1/3)πr^2h = (1/3)π(3^2)(8) = 24π cm^3. For 6 pots: 6·24π = 144π ≈ 144·3.14159 = 452.389… ≈ 452 cm^3.