+0  
 
0
90
1
avatar+212 

whar is ac?

lysxsa  May 18, 2018
 #1
avatar+88769 
+1

The fact that  BC is parallel to DE  sets up the following relationship :

 

AC/CE  = AB /BD

 

AC / 15  = 8 /10     

 

AC / 15 =  4 /5    multiply both sides by 15

 

AC  = 15 * 4  /5   =   60 / 5   = 12

 

 

 

cool cool cool

CPhill  May 18, 2018

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