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Mathematics
Problem
In a circle with centre
O
O
O
, chord
P
Q
PQ
P
Q
subtends an angle of
50
∘
50^{\circ}
5
0
∘
at
O
O
O
, chord
R
S
RS
R
S
subtends
60
∘
60^{\circ}
6
0
∘
, and chord
T
U
TU
T
U
also subtends
50
∘
50^{\circ}
5
0
∘
. Which pair of chords is equal in length? a)
R
S
RS
R
S
and
T
U
TU
T
U
b)
P
Q
PQ
P
Q
and
T
U
TU
T
U
c)
P
Q
PQ
P
Q
and
R
S
RS
R
S
d) None of these
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