SOLUTION: If the original area of a rectangle is =8cm squared.Show calculations on how to find the area of the rectangle ABCD when the sides are 10 times the original area?

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Question 972408: If the original area of a rectangle is =8cm squared.Show calculations on how to find the area of the rectangle ABCD when the sides are 10 times the original area?
Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
.
I assume the intention is that the sides are 10 times the original length,
since the sides cannot be 10 times the original area.
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L=original length; W=original width; A=original area=8 sq cm; A%5BN%5D=new area
.
LW=8cm%5E2 Use this to substitute for LW
.
%2810L%29%2810W%29=A%5BN%5D
100%28LW%29=A%5BN%5D Substitute for LW.
100%288cm%5E2%29=A%5BN%5D
800cm%5E2=A%5BN%5D
ANSWER: The area of the new rectangle will be 800 square centimeters.