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In circle S, what is the value of x?

Kakarot_15  Apr 13, 2017
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Two triangle vertices intercept a diameter....so......the angle opposite that diameter = 90

 

Since the sum of any three angles in a triangle = 180, the other two angles must also sum to 90

 

So

 

39 + x  = 90        subtract 39 from each side

 

x = 90 - 39   =   51°

 

 

 

cool cool cool

CPhill  Apr 13, 2017

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