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Home / Questions / Q 814
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In the given figure, Ab is a diameter of the circle with centre O and

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| In the given figure, Ab is a diameter of the circle with centre O and XY is the tangent at a point C. If , then what is the value (in degrees) of ?

A. 45

B. 35

C. 55

D. 65

Right Answer is: C

SOLUTION

Angle ACX=35 °
Angel ACX= angle ABC=35 ° (Rule: The angle that a chord makes with the tangent is equal to the angle that it makes in the circle.)
Angle BCY=180-angle ACB-ACX=180-90-35=55 °
Angle BCY=angle BAC=55 °

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    1. In the given figure, Ab is a diameter of the circle with centre O and

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