Q. 95.0( 1 Vote )

In Fig. 10.76, CP

Answer :

Given:


BR = 4 cm


CP = 11 cm


Property: If two tangents are drawn to a circle from one external point, then their tangent segments (lines joining the external point and the points of tangency on circle) are equal.


Using the above property,


BR = BQ = 4 cm (tangent from B)


And,


CP = CQ = 11 cm (tangent from C)


Now,


BC = CQ – BQ


= 11 cm – 4 cm


=7 cm


Hence, BC = 7 cm


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