1.

I.1x6In the figure, find the length of the tangent CDif AP=3cm and PC-8cm..

Answer»

We know that the lengths of the tangents from an external point to a circle are equal.

AP = PB = 3 cm and CD = BC

Since BC = PC – PB = 8 – 3 = 5 cm, CD = 5 cm

Hence, the length of CD is 5 cm.



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