the lateral surface area of a hollow cylinder is3872cm. it is cut along its height and formed a recatngular sheet of widht 44cm. find the perimeter of the sheet.
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lateral surface area of hollow cylinder=2πr therefore,2πr=3872 so, 2×22/7×r=3872 44/7r=3872 r=3872×7/44=88×7= 616
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sreelakshmyaj:
This answer is wrong...perimeter is 2(l+b)
It is right because here perimeter of rectangle = circumference of base of cylinder(and base of cylinder is circle)
The circumference of the base of the circle will be the length of the rectangle
Yeah u r right
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