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Circle O has tangent AB and secant AC as shown. Arc BC measures 4x + 20. Arc BE
measures 2x - 10. Which is the correct way to set up the equation if you are trying to find the value of x?

Multiple choice:

a) 50=0.5(2x-10 - (4x+20)
b) 50=0.5(2x - 10 + 4x + 20)
c) 50=0.5(4x + 20-(2x - 10))
d) 50=0.5(4x +20 - 2x - 10)

 

 Apr 20, 2020
 #1
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c) 50 = .5(4x+20-(2x-10)) is the correct answer. 

 

Arc BC is A

Arc BE is B

 

Angle A = 50

 

A-B= 2 * 50

 

With this formula you can make it fit into one of the choices.

 

🔥🔥🔥

 Apr 20, 2020

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