- A14 cm
- B3.5 cm
- C7 cm
- D28 cm
Step-by-Step Solution
Arc of the semicircle = π × 14 = 14π. This becomes the base circumference 2πr, so r = 7 cm. The slant height is 14 cm.
Answer: C) 7 cm
A semicircular sheet of radius 14 cm is rolled into a cone. Find the base radius of the cone.
Class 9Surface Area of a ConeMensuration
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