Question

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

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Answer 1

Answer:

322 cm

Step-by-step explanation:

Lateral Surface area of cylinder = 4224 cm and height = 33 cm.

It is cut along its height and formed a rectangular sheet.

∴ CSA of hollow cylinder = Area of rectangular sheet

=> 4224 = length * breadth

=> 4224 = length * 33

=> length = 4224/33

=> length = 128 cm

Perimeter of rectangular sheet = 2(l + b)

=> 2(128 + 33)

=> 2(161)

=> 322 cm

Hence, Perimeter of rectangular sheet = 322 cm.

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Answer 2

Answer:

Lateral surface area of cylinder = 4224 cm

let length of the rectangular sheet = L cm

=> 33 × L = 4224

=> L = 128 cm

new parimeter of rectangular sheet = 2[128+33]

= 322 cm