Question

The lateral Surface area of hollow Cylinder is 4224
cm². It is cut along its height and formed a
rectangular sheet of widths 33 cm. find the
perimeter of rectangular sheet.
​

Answer 1

Answer:

Answer:

Answer is 5Ω

7Ω+3Ω=10Ω

10Ω-10Ω=0

5Ω is remaining

Answer 2

Given that:

• 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.

To Find:

• The perimeter of rectangular sheet.

Formula used:

• Area of rectangle = Length × Breadth
• Perimeter of rectangle = 2(Length + Breadth)

Let us assume:

• The length of the rectangular sheet be L.

According to the question.

Area of rectangular sheet = Lateral surface area of a hollow cylinder

ㅤ↠ㅤL × 33 = 4224

ㅤ↠ㅤ33L = 4224

ㅤ↠ㅤL = 4224/33

ㅤ↠ㅤL = 128

∴ Length of rectangular sheet = 128 cm

Now,

Finding the perimeter of rectangular sheet:

ㅤ↠ㅤPerimeter = 2(128 + 33)

ㅤ↠ㅤPerimeter = 2(161)

ㅤ↠ㅤPerimeter = 322

Hence,

• The perimeter of rectangular sheet is 322 cm.