Relation of Tangent and Secant From an External Point: If a secant and a tangent of a circle are drawn from a point outside the circle, then the product of the lengths of the secant and its external segment equals the square of the length of the tangent segment. Illustration: Find the length of the tangent when the length of the secant 5 cm and the external segment is 4 cm. Let AC = x Given secant CD= 5 and external segment BC = 4 cm x= 6 cm |
Number of tangents, that can be drawn to a circle, parallel to a given chord is _____________________ | |||
Right Option : B | |||
View Explanation |
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