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 Stuck on this :(

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avatar+159 

The figure below is composed of the rectangles A, B, C, and D with whole number values for length and width. The areas of regions A, B,and C in square meters, are shown in the diagram. What is the area in square meters of rectangle D?

 Nov 28, 2018

3+0 Answers

 #1
avatar+159 
+3

Got the answer lol its actauly really easy.  The answer is 48 blush

 Nov 28, 2018
 #2
avatar+129852 
+1

By Euclid.....we have this

 

Area A * Area C = Area B * Area D

 

40 * 30  = 25 * Area D

 

1200 =  25 * Area D     divide both sides by 25

 

48 = Area D 

 

 

cool cool cool

 Nov 28, 2018
edited by CPhill  Nov 28, 2018
 #3
avatar+37146 
0

B has to be 5 x 5   since it is whole number w and d

so  A = 5 *x = 40     x = 8   A = 5 x 8

 

Then C = 6 x 5 = 30

and D is 6 x 8 = 48

 Nov 28, 2018

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