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Mathematics
Mathematics
Problem
Chords
A
B
AB
A
B
and
C
D
CD
C
D
of a circle are equal in length. Chord
A
B
AB
A
B
subtends an angle of
50
∘
50^{\circ}
5
0
∘
at a point
E
E
E
on the circumference. Find the angle subtended by chord
C
D
CD
C
D
at the centre of the circle.
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