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Mathematics
Mathematics
Problem
In a circle with centre
O
O
O
, chord
A
B
AB
A
B
subtends an angle of
110
∘
110^\circ
11
0
∘
at the centre. Point
C
C
C
lies on the circle on the same segment as
A
B
AB
A
B
. Find
∠
A
C
B
\angle ACB
∠
A
C
B
. a)
45
∘
45^\circ
4
5
∘
b)
55
∘
55^\circ
5
5
∘
c)
70
∘
70^\circ
7
0
∘
d)
35
∘
35^\circ
3
5
∘
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