A tangent is drawn from a point P which is at a distance of 10 cm from the centre of the circle O. The radios of the circle is 6 cm. Then the length of portion of tangent between P and the point of contact is:
A
8 cm
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B
9 cm
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C
12 cm
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D
5 cm
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Solution
The correct option is A 8 cm The angle between the radius and the tangent at a point is 90∘. Let, the point of contact be A, ΔOAP is a right triangle.