Mensurationmedium · Past Paper
A well with 14 m inside diameter is dug 10 m deep. Find the inner curved surface area.
A440 sq. m
B220 sq. m
C880 sq. m
D154 sq. m
✓ Correct Answer: A — 440 sq. m
Radius = 7 m, Height = 10 m. CSA = 2πrh = 2 * (22/7) * 7 * 10 = 440 sq. m.
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