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Help.

NotSoSmart  Mar 31, 2017
 #1
avatar+89806 
+3

Note that arc BYA  = 180

 

And minor arc BY  + minor arc YA   =  180

 

So

 

41   +   minor arc YA   = 180     subtract 41 from each side

 

minor arc AY  = 180 - 41   = 139

 

And angle YAC  is 1/2 of this =  69.5

 

 

cool cool cool

CPhill  Mar 31, 2017

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