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A rectangle is divided into five congruent rectangles.  The trapezoid is what percent of the whole rectangle?

 

 May 7, 2020
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Area of Large rectangle =   L x H

each smaller rectangle =  1/5 L x H

 

Area of trapezoid    1/2 (base1 + base 2) x H

                                 1/2 (2/5L + 1/5L) x H =  3/10 LH

 

% area =  ( 3/10 LH ) / LH = 3/10  = 30 %

 May 7, 2020
edited by ElectricPavlov  May 7, 2020

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