Question

Curved surface area of a hollow cylinder is 4224 sq. cm. A rectangular sheet having width 33 cm
formed cutting it along its height. Find the perimeter of sheet.

class 8th maths rbse ​

Answer 1

Answer:

322 cm

Step-by-step explanation:

Curved surface area of a hollow cylinder is 4224 cm^2.

A rectangular sheet formed cutting it along its height.

∴ CSA = Area of sheet

=> 4224 = length * breadth

=> 4224 = length * 33

=> length = 128 cm

Perimeter of sheet = 2(l + b)

=> 2(128 + 33)

=> 2(161)

=> 322 cm

Hence, Perimeter of the sheet = 322 cm

#Hope my answer will help you!