Which of the following is true for Circles and
where
?
and
are concentric circles for all values of a
is lying entirely inside
, if
is lying entirely inside
if
All of the above
So they are concentric for any value of a
Now radius for first circle =
Radius for second circle =
radius of second circle > radius of first circle
As they are concentric, so in this case first circle lies entiely inside second circle
radius of second circle < radius of first circle
As they are concentric, so in this case second circle lies entiely inside first circle
So option D is correct
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