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The lateral surface area of a …

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The lateral surface area of a hollow cylinder is 4224 cm sq2 . It is cut along its height and formed a rectangular sheet of width 33cm . Find the perimeter of rectangular sheet.

Posted by Madhura C Pandurang 6 years, 11 months ago

CBSE > Class 08 > Mathematics

1 answers

Yogita Ingle 6 years, 11 months ago

∵   Lateral surface area of a cylinder = 4224 cm2
and       let length of the rectangular sheet = l cm
∴      33 x l = 4224
l = 4224/33 = 128 cm
Now perimeter of the rectangular sheet = 2[Length + Breadth]
= 2[128 cm + 33 cm]
= 2 x 161 cm
= 322 cm

3Thank You

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