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AC is tangent to circle O at A. The diagram is not drawn to scale. If mBY =34 degrees, what is < YAC? a. 68 degrees b. 51 degrees c. 73 degrees d. 56 degrees Download jpg

Jodi Brooks

in Mathematics

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Cynthia Baker on March 1, 2019

Recall that a tangent to a circle is perpendicular to the diameter of the circle on the pont of tangency.Given that AC is a tangent to a circle Or in A, this means that the line AB is a diameter of the circle.Therefore, the angle BAC is a right angle.Also, angle BAC = angle of the BAY + angle of YAC.I.e. 34 +


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