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From an external point
MATHEMATICS · Single correct · CBSE · Mathematics · Circles · Circles
Problem
From an external point
P
P
P
, a tangent
P
T
PT
P
T
of length
6
cm
6\,\text{cm}
6
cm
is drawn to a circle whose centre is
O
O
O
. If
O
P
=
10
cm
OP=10\,\text{cm}
O
P
=
10
cm
, what is the radius of the circle? (a)
6
cm
6\,\text{cm}
6
cm
(b)
8
cm
8\,\text{cm}
8
cm
(c)
4
cm
4\,\text{cm}
4
cm
(d)
12
cm
12\,\text{cm}
12
cm
Related theory
Pythagoras' Theorem
Triangle Properties
Circles
Tangent length properties
Tangent theorem (radius perpendicular to tangent)
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