Question

Cp and cq are tangents from an external point c to a circle with centre o ab is another tangent which touches the circle at r and intersects pc and qc at a and b respectively . if cp = 11cm and br = 4cm, thenfind the length of bc.

Answer 1

hope this will be helpful

Answer 2

Given :  CP & CQ are tangent from  an external point c to a circle  with center O.

AB is another tangent which touches the circle at R and intersects PC  & QC at A and B respectively

CP = 11 cm

BR = 4 cm

To Find : Length of BC

Solution:

BC = CQ  - BQ

CQ = CP  Equal tangent

CP = 11 cm

=> CQ = 11 cm

BQ = BR  Equal tangent

BR = 4 cm

=> BQ = 4 cm

BC = CQ  - BQ

=> BC = 11 - 4

=> BC = 7 cm  

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