15. A rectangular piece of paper 22cm long is rolled about its height 12cm. Find the volume
of the cylinder so formed.
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Answer:
462cm3
Step-by-step explanation:
length=22cm breadth=12cm
circumference=22cm
which is,
circumference=2πr
22cm=2x22/7xr
22x7x2/22=r
7/2=r
3.5=r
volume of cylinder=πr^2h
=>22/7x3.5x3.5x12
=>3234/7
=>462cm3
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