7th Grade Math
posted by Alayah on .
The area of a certain rectangle is 288yd^2.the perimeter is 68yd.if you double the lengths and widths,what will be the new area and perimeter of the new rectangle be?

p doubles
a grows by 2^2 = 4x 
Whatever the original surface may be, if you double the length of a rectangle the surface will also be doubled. Just the same for the width.
So doing both the operations, will multiply the surface by 2x2 = 4 
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