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The lateral surface area of a hollow cylinder is 6446 cm ^ 2 . It is cut along its height and found a rectangular sheet of width 22cm. Find the perimeter of rectangular sheet? |
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Answer» HOLLOW cylinder is converted into a rectangular sheet So, Area of cylinder and sheet must be the same Curved SURFACE area of hollow cylinder = Area of rectangular sheet 6446=L×B 6446=L×22 6446/22=L L=6446/22 L=293 Now, Perimeter of sheet=2(L+B) =2×(293+22) =2×315 =630 |
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