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Mathematics
Mathematics
Problem
In a circle,
A
B
=
A
C
AB = AC
A
B
=
A
C
. The diameter through
A
A
A
meets the circle again at
D
D
D
. If
∠
A
B
C
=
56
∘
\angle ABC = 56^\circ
∠
A
B
C
=
5
6
∘
, calculate
∠
A
D
C
\angle ADC
∠
A
D
C
.
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