Question 21
ABCDis a cyclic quadrilateral, AB and DC when produced meet at P, if PA = 8 cm, PB = 6 cm, PC = 4 cm, then the length (in cm) of PDis
Solution
Given that,PA = 8 cm, PB = 6 cm, PC = 4 cm
As per tangent & secant rule,
$$ PA \times PB = PD \times PC $$
=>$$ PD = \frac{8\times6}{4}=12cm $$
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