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A circle is inscribed in a ΔABC touching AB, BC and AC at P, Q and R respectively. If AB = 10 cm, AR=7cm and CR=5cm, find the length of BC.

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A circle is inscribed in a ΔABC touching AB, BC and AC at P, Q and R respectively. If AB = 10 cm, AR=7cm and CR=5cm, find the length of BC.

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Given, a circle inscribed in triangle ABC, such that the circle touches the sides of the triangle 

Tangents drawn to a circle from an external point are equal.

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