Question

4.7 volume of prisms and cylinders
you are planning a new sandbox for your neighborhood park that is 20 feet by 18 feet. the box will be filled 6 inches deep with sand, or 0.5 ft. how many cubic feet of sand do you need to order?
i need to order □ ft³ of sand.

Explanation:

Step1: Identify the shape and formula

The sandbox is a rectangular - prism. The volume formula for a rectangular - prism is $V = l\times w\times h$, where $l$ is the length, $w$ is the width, and $h$ is the height.

Step2: Substitute the given values

Given $l = 20$ ft, $w = 18$ ft, and $h=0.5$ ft. Then $V=20\times18\times0.5$.

Step3: Calculate the volume

$20\times18 = 360$, and $360\times0.5=180$ $ft^{3}$.

Answer:

$180$