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The length of the longer side of rectangle r is 10 percent more than the length of a side of square s. The length of the shorter side of rectangle r is 10 percent less than the length of a side of square s. What is the ratio of the area of rectangle r to the area of square s? Express your answer as a common fraction.

 

Any help would be much appreciated!  smiley

 Oct 30, 2018
 #1
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s= square side

then areas ratio becomes:

 

(s+.1s)(s-.1s) / (s * s) =

s^2 - .01s^2) / s^2

 

(1- .01)/1 = .99/1 =  99/100

 Oct 30, 2018

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