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12 votes
12 votes
Sara wants to trim a lampshade with braid. the lampshade is shaped like a rectangular prism. the length of the base of the lampshade is 4 inches greater than its width. if the perimeter of the base is 54 inches, find the length of the base.

User FutureJJ
by
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1 Answer

29 votes
29 votes

Answer:

15.5 inches

Explanation:

Let the width be
w and the length be
w+4.

Using the formula for the perimeter of a rectangle,


2(w+w+4)=54 \\ \\ 2w+4=27 \\ \\ 2w=23 \\ \\ w=11.5 \\ \\ \implies w+4=15.5

User Omerkudat
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