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Solution - Number of Tangents from a Point on a Circle

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ConceptNumber of Tangents from a Point on a Circle  

Question

In Fig.2, a quadrilateral ABCD is drawn to circumscribe a circle, with centre O, in such a way that the sides AB, BC, CD and DA touch the circle at the points P, Q, R and S respectively. Prove that AB + CD = BC + DA.

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Reference Material

Solution for concept: Number of Tangents from a Point on a Circle. For the course 8th-10th CBSE
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