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Donovan is creating a geometric design using similar rectangles. One of his rectangles is 2 inches wide and 6 inches long. He wants to have another rectangle that is 5 inches wide. To follow his design, how long must the second rectangle be?



2 inches


6 inches


12 inches


15 inches

Respuesta :

carlosego
The problem says that Donovan is using similar rectangles, so you can calculate the length of the second rectangle, by using the similarity concept.

 We have that the first rectangle is 2 inches wide and 6 inches long, and the second rectangle must has 5 inches wide. Then:

 2/5=6/L  (L: the length of the second rectangle).
 2L=6x5
 2L=30
 L=30/2
 L=15 inches

 How long must the second rectangle be? 

 The answer is: The second rectangle must be 15 inches long.

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