In the diagram, O is a circle centre of the circle PQRS and ∠ PSR...
MATHEMATICS
WAEC 2012
In the diagram, O is a circle centre of the circle PQRS and ∠ PSR = 86°. If ∠ PQR = x°, find x
- A. 108°
- B. 172°
- C. 130°
- D. 50°
Correct Answer: B. 172°
Explanation
xo = 86 x 2(angle at centre = 2 x angle at circumference)
= 172o
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