A rectangle paper of width 22cm is rolled along its width and a cylinder of height 20 CM is format find the volume of the cylinder
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Width = 22 cm
And when the sheet is rolled along its width then the circumference of the top of the cylinder so formed will be 22 cm.
Circumference = 22 cm
2πr = 22 cm
2×22/7×r = 22
r = (22×7)/(2×22)
r = 7/2
r = 3.5 cm
Height = 20 cm
Volume = πr²h
= 22/7×3.5×3.5×20
= 770 cm³
Hope this answer will help you.
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