IXL | Perimeter word problems: find the missing side length of a rectangle

Lily buys a rectangular rug that has a perimeter of 36 feet and a width of 8 feet. What is the length of the rug?

feet

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A curtain has a height of 9 feet and a perimeter of 32 feet. How wide is it?

feet

To find the perimeter of a rectangle, add its side lengths.

A curtain has a height of 9 feet and a perimeter of 32 feet. You need to find its width.

Two of the sides measure 9 feet. So, start with the perimeter of 32 feet and subtract 9 feet twice.

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That leaves 14 feet for the other two sides. So, divide by 2 to find the width.

The curtain is 7 feet wide.

It is a good idea to check your work. Add the side lengths and see if the perimeter is 32.

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