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Here are some tips for Rectangular Solids 2, which aligns with Minnesota state standards:

Rectangular Solids 2


To master this topic, you should understand the volume and surface area formulas for rectangular solids.
For review the Rectangular Solids topic, see here.



Example 1: Volume

The volume of a rectangular solid is 72 ft3.
The length is 6 ft and the height is 3 ft. What is the width?
w =

Use the volume formula and plug in what you know.
Then solve for the unknown.

We are solving for the width, w.
The answer is w = .


Example 2: Surface Area

The surface area of a rectangular solid is 52 cm2.
The lengths of two of the sides are 4 cm and 2 cm.
What is the length of the other side?
length =

Use the surface area formula and plug in what you know.
Then solve for the unknown.

Assign width = 4 cm and height = 2 cm.
We are solving for the length, l.
The answer is length = .

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