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Prove that tangents of a circle …

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Prove that tangents of a circle from a point are equal without congruence method.

Posted by Praveen Basera 7 years ago

CBSE > Class 10 > Mathematics

3 answers

Indu Mahipal 7 years ago

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Indu Mahipal 7 years ago

Let the common point of tangents P and the point meet at the circle are A and B. We use congruency for <OPA =<OPB. Then use similarity on ∆OAP and ∆OBP. By AA triangles got similar then by CPST(corresponding part ob similar traingle) we use OA/OB=PA/PB. Hence PA=PB

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Shivam Yadav 7 years ago

It can be by side opposite to equal angle are equal

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