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Circle O has tangent AB and secant AC as shown. arc BC measures 4x+2-. arc BE measures 2x-10. What is the measure of arc CB

 

 Apr 26, 2020
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Angle(A)  =  ½( arc(BC) - arc(BE) )

      50      =  ½( (4x + 20) - (2x - 10) )

      50      =  ½( 4x + 20 - 2x + 10 )

      50      =  ½( 2x + 30 )

      50      =  x + 15

            x  =  35

 

Can you finish this problem? ...

 Apr 26, 2020

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