CBSE Class 10 Maths (Standard) 2023 · Paper 30/C/B · Question 33(b)
Prove that the lengths of the tangents drawn from an external point to a circle are equal.
Answer
The tangents from an external point are equal: , because by RHS (right angles at and , common hypotenuse , radii ) and corresponding parts of congruent triangles are equal. Hence proved.
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From the board papers
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