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01-02-2018
Mathematics

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What is the largest rectangular area one can enclose with 38 inches of string?

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calculista calculista

13-02-2018

The largest rectangle is a square.
therefore
Perimeter=38 in
P=2x+2y
x=y (square)---------------------- >2x+2x=4x
38=4x
x=38/4=9.5 in
A=x² =9.5² =90.25 in²

the answer is 90.25 in²

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