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In the diagram below,  angle BAC=24 degrees and AB = AC.

 

If angle ABC=y degrees, what is the value of y?

 

https://ibb.co/caP1Ux

 Apr 10, 2018
 #1
avatar+95884 
+1

Since AB  = AC  ....the angles opposite these sides are also equal...

 

So   y   =    [ 180 - 24 ] / 2   =  156 /  2    =   78°

 

 

cool cool cool

 Apr 10, 2018

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