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The sides of a square are reduced by 2 inches. the new area is 20 square inches. Set up and solve an equation to find the original length of the square. USE THE SQUARE ROOT PROPERTY!!!!!
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40 votes
40 votes
The sides of a square are reduced by 2 inches. the new area is 20 square inches. Set up and solve an equation to find the original length of the square.

USE THE SQUARE ROOT PROPERTY!!!!!

User Hesham Yemen
by
2.6k points

1 Answer

19 votes
19 votes

Answer:

Explanation:


(x - 2)^(2) = 20


x - 2 = \sqrt {20}


x - 2 = 2\sqrt {5}


x = 2 + 2\sqrt {5}


x = 6.47 inches (3sf)

User Will Robertson
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2.9k points
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