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When the length of a rectangle is increased by 20% and the width increased by 12%, by what percent is the area increased?

 Oct 26, 2020
 #1
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When the length of a rectangle is increased by 20% and the width increased by 12%, by what percent is the area increased?

 

the area is increased by 23.2%

 Oct 26, 2020
 #2
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l * w = area

1.2 l  *  1.12 w = 1.344  l*w      1.344 means the area increases by 34.4 %

 Oct 26, 2020

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