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

Answer 1

i think 452cm^3
Voulme of one cylinder times 6

Answer 2

Soil required = 453 cm³

Explanation:

Volume of cone
`=(1)/(3)* \texttt{base area}* \texttt{depth}`

Base area of cone
`=\pi r^2=\pi * 3^2=9\pi cm^2`

Depth of cone = 8 cm

Volume of one cone
`=(1)/(3)* 9* \pi * 8=75.39cm^3`

Volume of six cones = 6 x 75.39 = 452.39 cm³ = 453 cm³

Soil required = 453 cm³