A rectangular sheet of dimensions 22 cm x 7 cm is rotated about its longer side. Find the volume
and the total surface area of the solid thus generated.
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Answer:
If rectanglur sheet is rotated then it becomes cylinder
So, height = 7 cm
Radius = 22/2 = 11 cm
Volume of cylinder = πr^2h
= 22/7 × 11 × 11 × 7
= 2662 cm*3
I hope this is right
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