Point C is the center of the circle. If angle ACB measures (5x + 10)° and arc AB measures (x + 50)° , find x.
1 answer:
Because the angle ACB is a central angle, and it intersect arc AB, their values are equal, so
(5x + 10)° = (x + 50)°.
5x+10=x+50
4x=40
x=10
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