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What is the length of CG?

 

 Aug 2, 2020
 #1
avatar+28021 
+1

57 is to 63     as    CG is to 21

 

57/63 = CG/21       Take it from here !  cheeky

 Aug 2, 2020
 #2
avatar+1154 
+2

we know that it has the same ration as 63:57 so we have 57/63*21=1197/63=19 so we have that the length of CG is \(\boxed{19}\)

 Aug 4, 2020

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