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In the diagram above, ∠PRQ = 90°, ∠QPR = 30°and /PQ/ = 10 cm. Find y.



In the diagram above, ∠PRQ = 90°, ∠QPR = 30° and /PQ/ = 10 cm. Find y.
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  • A 6cm
  • B 5cm
  • C 4cm
  • D 3cm
  • E 2cm
Correct Answer: Option B
Explanation:
\(\sin 30° = \frac{y}{10}\)
\(y = 10 \sin 30° = 10 \times 0.5 = 5 cm\)

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