Published by:
CGP EDU Academic Team
Published on: August 13, 2026
The radius of the circular section of the sphere 
by the plane 
is
Text Solution
Verified by ExpertsThe correct answer is:
4
4
The centre of the sphere 
is at the origin and radius 
. Let 
be the foot of perpendicular from 
to the given plane. Then 
length of perpendicular from 
to the given plane
Let 
be any position of circle, then 
lies on plane as well as on sphere.
radius of sphere 
In 
we have
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