Question

A large “round” bale of hay is actually the shape of a cylinder with a four-foot diameter and a five-foot height. A traditional “square” bale of hay is actually in the shape of a rectangular prism. Its dimensions are 2 feet by 4 feet. Approximately how many “square” bales contain the same amount of hay as one “round” bale of hay? Round to the nearest whole number.

Answer 1

4 square bales of hay

Explanation:

• cylinder's volume

V=πr2h=π·22·5≈62.83185 -> 63 (when rounded)

• rectangle's volume

V=whl=2·2·4=16

• Equation

63 / 16 = 3.9375 -> 4 (when rounded)