a cylindrical pipe is made from a metal sheet of length 8 cm and 20 cm what is the volume of the pipe
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Volume of a cylinder is 2πrh
given:
length:20cm; breadth:8cm of the rectangle
when folded into a cylinder, (consider the circumference is lesser than the height) the breadth becomes the circumference and the length becomes height of the cylinder.
Therefore, circumference:8cm ; height:20cm
i.e 2πr = 8cm ; h = 20cm
Volume = 2πrh= 8×20
= 160cm³
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