SOLUTION: What is the area of a rectangle with length 14 and perimeter 40?

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Question 386348: What is the area of a rectangle with length 14 and perimeter 40?
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
2*14+2x=40
28+2x=40
2x=12
x=6
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A=14*6
A=84 sq units