Mensurationhard · Past Paper
The lateral surface area of a cylinder is 94.2 sq. cm and its height is 5 cm. Find the radius of its base. (Use π = 3.14)
A3 cm
B2 cm
C4 cm
D5 cm
✓ Correct Answer: A — 3 cm
2πrh = 94.2. 2 * 3.14 * r * 5 = 94.2. 31.4 * r = 94.2. r = 3 cm.
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