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Mathematics
Mathematics
Problem
In a circle with centre
O
O
O
, chords
A
B
AB
A
B
and
C
D
CD
C
D
are equal and each measures
7
cm
7\,\text{cm}
7
cm
. If
∠
A
O
B
=
56
∘
\angle AOB = 56^{\circ}
∠
A
O
B
=
5
6
∘
, then
∠
C
O
D
\angle COD
∠
C
O
D
is a)
112
∘
112^{\circ}
11
2
∘
b)
56
∘
56^{\circ}
5
6
∘
c)
28
∘
28^{\circ}
2
8
∘
d)
124
∘
124^{\circ}
12
4
∘
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