The lateral surface area of a hollow cylinder is 4224 cm2. It is cut along its height and formed a rectangular sheet of width 33 cm. Find the perimeter of the rectangular sheet?
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Step-by-step explanation:
The lateral surface area of cylinder = The perimeter of rectangle as it is cut along with its height
4224= 2 ( l + b )
4224= 2( 33+ b )
4224 = 66 + b
b = 4224/66
b = 64 cm
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Answered by
2
Answer:
Given that lateral surface area of a hollow cylinder is 4224 cm²
We know that Area of rectangle= Area of the hollow cylinder
Let the length of the rectangle be l
Area of rect= l * b
⇒ 4224= l * 33
⇒ l= 4224/33
⇒ l= 128 cm
Perimeter of the rectangular sheet= 2( l +b)
= 2 (128 + 33)
= 2 ( 161)
= 322 cm
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