Mathematics

Mathematics

Problem

In a circle, chord

PQ

subtends an angle of

40^\circ

at point

R

on the circumference. If

S

is another point on the circumference such that

P, Q, R,

and

S

lie on the same segment with respect to

PQ

, find

\angle PSQ

. a)

80^\circ

b)

40^\circ

c)

140^\circ

d)

60^\circ

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