+0  
 
0
69
1
avatar

What is the length of AC?

 

 Sep 10, 2020
 #1
avatar+28021 
0

140-x     is to 81        as   x   is to 9

 

(140-x) / 81 = x/9

9(140-x) = 81x

x = 14

 

 

AC =    140-x = 126

 Sep 10, 2020

15 Online Users

avatar