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Problems
In quadrilateral
MATHEMATICS · Subjective · CBSE · Mathematics · Circles · Circles
Problem
In quadrilateral
A
B
C
D
ABCD
A
B
C
D
, it is given that
∠
A
C
B
=
∠
A
D
B
\angle ACB = \angle ADB
∠
A
C
B
=
∠
A
D
B
. Show that the four points
A
,
B
,
C
,
A, B, C,
A
,
B
,
C
,
and
D
D
D
lie on a circle.
Related theory
Circles
Circle angle properties
Angle subtended by a chord
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