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avatar+1612 

Help with circles plz!  Find BC.

 

 Jan 13, 2024
 #1
avatar+128732 
+1

Assuming that arc AD = arc BC

 

Then   

2 arc BC  + arc AB  =  180

 

2arc BC +  80    =180

 

2 arc BC  =100

 

arc BC =100  / 2    = 50

 

 

cool cool cool

 Jan 13, 2024

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