Published by:
CGP EDU Academic Team
Published on: August 22, 2026
Let the tangents at the points 
and 
on the circle 
, intersect at the point 
. Then the radius of the circle, whose centre is 
and the line joining 
and 
is its tangent, is equal to
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
Equation of line 
is
P 
Let 
be 
then equation of 
Now, by comparing (i) and (ii)
after solving centre 
is
and radius of circle is
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