The diagram is a circle centre O. Find the value of x

  • A 30o
  • B 50o
  • C 61o
  • D 78o
  • E 65.5\(^{\circ}\)
waec 2004mathematics

The correct answer is E. 65.5\(^{\circ}\)

∠PQR (Reflex) = 360° â€“ 68° = 292°

∠PQR = 2∠PQR

292° = 4x + 30°

4x = 292 â€“ 30 = 262

\(x = \frac{262}{4}=65.5°\)

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