In the given figure, $ riangle ABC$ is circumscribing a circle. Find the length of $BC$.

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Question

In the given figure, $	riangle ABC$ is circumscribing a circle. Find the length of $BC$.

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Accepted Answer

Step 1: Tangents from external point are equal: $BP = BQ = 3$ cm, $AP = AR = 4$ cm.
$CR = AC - AR = 11 - 4 = 7$ cm, so $CQ = CR = 7$ cm.
$BC = BQ + CQ = 3 + 7 = 10$ cm

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