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Mathematics
Mathematics
Problem
In a circle with centre
O
O
O
, chords
P
Q
PQ
P
Q
and
R
S
RS
R
S
are of equal length. If
∠
P
O
Q
=
56
∘
\angle POQ = 56^{\circ}
∠
P
O
Q
=
5
6
∘
, find
∠
R
O
S
\angle ROS
∠
R
O
S
.
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