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0
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1
avatar+117 

​ △XYZ∼△DEF ,  YZ  is 10 meters, ​ XZ ​  is 15 meters, and EF  is 8 meters.

What is ​ DF ​?

Enter your answer in the box.

 m

 Feb 28, 2018
 #1
avatar+94545 
+1

XZ / YZ  = DF / EF

 

15 / 10  =  DF  / 8

 

3 / 2  =  DF / 8       multiply both sides by 8

 

8 * 3 / 2   =  DF

 

24 /2   =  DF

 

12  = DF

 

 

cool cool cool

 Feb 28, 2018

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