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A semicircular protractor has diameter 14 cm. Find its perimeter (the curved edge plus the straight edge) in cm. Take π = 22/7.

Competition practiceAreas & Volumes
  • A44
  • B36
  • C22
  • D28

Step-by-Step Solution

Radius = 7 cm. Curved edge = πr = (22/7) × 7 = 22 cm, straight edge = 14 cm. Perimeter = 22 + 14 = 36 cm.
Answer: B) 36

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