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Mathematics
Problem
In a circle with centre
O
O
O
, arc
P
Q
PQ
P
Q
subtends an angle of
50
∘
50^\circ
5
0
∘
at a point
R
R
R
on the circle. What is the measure of
∠
P
O
Q
\angle POQ
∠
P
O
Q
? a)
80
∘
80^\circ
8
0
∘
b)
50
∘
50^\circ
5
0
∘
c)
100
∘
100^\circ
10
0
∘
d)
130
∘
130^\circ
13
0
∘
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