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, , and are points on a circle with centre such that and . If is a point on the…
MATHEMATICS · Subjective · CBSE · Mathematics · Circles · Circles
Problem
A
A
A
,
B
B
B
, and
C
C
C
are points on a circle with centre
O
O
O
such that
∠
B
O
C
=
30
∘
\angle BOC=30^\circ
∠
B
O
C
=
3
0
∘
and
∠
A
O
B
=
60
∘
\angle AOB=60^\circ
∠
A
O
B
=
6
0
∘
. If
D
D
D
is a point on the circle outside arc
A
B
C
ABC
A
B
C
, find
∠
A
D
C
\angle ADC
∠
A
D
C
.
Related theory
Circles
Circle angle properties
Angle subtended by a chord
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