PQRS is a cyclic quadrilateral If QPS 75 what i... - WAEC Mathematics 2003 Question
PQRS is a cyclic quadrilateral. If ∠QPS = 75°, what is the size of ∠QRS?
A
180o
B
150o
C
105o
D
75o
correct option: c
< QPS = 75°
< QRS = 180° - 75° = 105° (opposite angles of a cyclic quadrilateral)
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