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Mathematics
Mathematics
Problem
For a point
P
P
P
at a distance
O
P
OP
O
P
from the centre
O
O
O
of a circle of radius
r
r
r
, a tangent to the circle can be drawn from
P
P
P
only when a)
O
P
>
r
OP > r
O
P
>
r
b)
O
P
≥
r
OP \ge r
O
P
≥
r
c)
O
P
=
r
OP = r
O
P
=
r
d)
O
P
≤
r
OP \le r
O
P
≤
r
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