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Mathematics
Mathematics
Problem
Points
A
,
B
,
C
A, B, C
A
,
B
,
C
and
D
D
D
lie on a circle. Give a reason to justify why
∠
A
D
B
=
∠
A
C
B
\angle ADB = \angle ACB
∠
A
D
B
=
∠
A
C
B
.
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