A pool was originally a square. The pools length is being increased by 4 feet to make pools new area be 480 square feet. What was the area of the original square pool?

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asked May 24, 2018 37.6k views

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A pool was originally a square. The pools length is being increased by 4 feet to make pools new area be 480 square feet. What was the area of the original square pool?

Mathematics
middle-school

DanielLC asked

by DanielLC

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Area of a square = Length ^2

480 = (x+4)^2

√480 = x + 4

21.9 = x + 4

x = 17.9

Hoagy Carmichael answered May 28, 2018

by Hoagy Carmichael

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