Question

circles.
5. PA and PB are two tangents from an exterior point P to a circle of radius 5 cm. If length of the
chord AB is 18 cm, then find the length of the tangent.​

Answer 1

Answer:

Let AC and BD be x and y respectively.

So, CE and ED will also be x and y respectively.....(Tangents from the same point are equal).

Since AC and BD are x and y then PC and PD will be 10−x and 10−y respectively.

Perimeter of triangle PCD= PC+PD+CD=10−x+10−y+x+y=20cm

Hence, option C is the correct answer.

solution

Step-by-step explanation:

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