+0  
 
0
55
1
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Find y

 

 Jul 11, 2020
 #1
avatar+26735 
+1

From the first triangle the sum of angles = 180   which means   x = 53

 

then since the triangle are congruent    11 = x - y   = 53-y    which means y = 42

 Jul 11, 2020

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