Question

A rectangular piece of paper 12 cm x 4 cm is folded without overlapping to make a cylinder of height 4 cm. Find the volume of the cylinder.​

Answer 1

Answer:

The volume of a cylinder with height as 4cm which is to be made of a rectangular piece of paper with dimensions 11 cm × 4 cm is 38.5 cm

Step-by-step explanation:

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Answer 2

Answer:

A rectangular piece of paper 12 cm x 4 cm is folded without overlapping to make a cylinder of height 4 cm. The volume of the cylinder is 38.5 cubic cm.​

Step-by-step explanation:

Given: The dimensions of the rectangular paper is 11cm × 4cm

The height of the cylinder is 4cm

Let the radius of the base and height of the cylinder be 'r' and 'h' respectively

Circumference of the base of cylinder = Length of the rectangle

2πr = 11

⇒ 2× 22/7 × r = 11

⇒ r = 7/4 cm

Height of the cylinder = 4cm (given)

The volume of the cylinder is $\pi r^2h$

Substituting the values of 'r' and 'h' we get

Volume of the cylinder=  (22 × 7 ) / ( 4)

= 38.5 cubic cm

So, the volume of the cylinder is 38.5 cubic cm.