In fig.1, if length of AB is 9 cm, then, find the length of CP.

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Solution

R.E.F image
CA = CP
(length of tangle from an external point are same)
Similarly CP = CB
(length of tangents from an external point
to a circle are equal)
$\Rightarrow C A = C P = C B = x$ (let)
$\Rightarrow C A + C B = A B = 2 x = 9 C . m$
$\Rightarrow x = \frac{9}{2} c . m$
$\Rightarrow C P = \frac{9}{2} c m = 4.5 c . m .$

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In fig.1, if length of AB is 9 cm, then, find the length of CP.

R.E.F image CA = CP(length of tangle from an external point are same)Similarly CP = CB (length of tangents from an external point to a circle are equal)⇒CA=CP=CB=x (let)⇒CA+CB=AB=2x=9C.m⇒x=92c.m⇒CP=92cm=4.5c.m.