20. A rectangular piece of paper 11 cm x 4cm is folded without overlap – InterviewSolution

1.	20. A rectangular piece of paper 11 cm x 4cm is folded without overlapping tomake a cylinder of height 4 cm. Find thevolume of the cylinder.
Answer» Given length of the rectangle=11cmbreadth of the rectangle=4cmFormula used:circumference of cylinder=2 pi rvolume of cylinder=pi r^2 hSolution:Circumference of circular part of cylinder =2 pi r =length of paper7=2 pi rr=1.11 cmvolume of cylinder=pi r^2 h=3.141.11^24=15.48 cm cubetherefore volume of cylinder=15.48 cm cube

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