Mensurationeasy · Past Paper
Find the area of a metal sheet required to make a hollow pipe of length 1m and radius 7cm.
A4400 sq. cm
B440 sq. cm
C2200 sq. cm
D44000 sq. cm
✓ Correct Answer: A — 4400 sq. cm
Length = 100cm. Area = 2πrh = 2 * (22/7) * 7 * 100 = 4400 sq. cm.
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