Question

The lateral surface area of a hollow cylinder is 4224 〖cm〗^2. It is cut along its height and formed a rectangular sheet of width 33 cm. Find the perimeter of a rectangular sheet

Answer 1

Here’s your answer:-

Answer 2

Answer: 322cm

Step-by-step explanation:

C. S. A = 4224cm²

Height = Width = 33cm

C. S. A = 2πrh

4224cm² = 2 × 22/7 × r × 33

4224 × 7/2 × 22 × 33 = r

224/11cm = r

Circumference of the circle = 2πr

= 2 × 22/7 × 224/11

= 128cm

Circumference = Length of the rectangular sheet

Perimeter of the rectangular sheet = 2(l + b)

= 2( 128 + 33)

= 2 × 161

= 322cm

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