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Find the condition that chord of contact of any external point to the circle should…
MATHEMATICS · Subjective · ICSE · Mathematics · Geometry · Geometry
Problem
Find the condition that chord of contact of any external point
(
h
,
k
)
(h,k)
(
h
,
k
)
to the circle
x
2
+
y
2
=
a
2
x^2 + y^2 = a^2
x
2
+
y
2
=
a
2
should subtend right angle at the centre of the circle.
Related theory
Circle (Standard Equation)
Conic Sections
Circles
Tangent to a Circle
Tangent length properties
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