Question

A rectangular piece of paper having length of 4.4cm and breadth is 1.5 cm is to be rolled along its length to form a right circular cylinder. find the height and volume of the right circular cylinder?? ​

Answer 1

Answer:

The height of cylinder is 1.5 cm and volume is 2.310 cm³

Explanation:

From the question, we have

Length of rectangle = 4.4 cm

Breadth of rectangle = 1.5cm

The rectangular piece of paper is to be rolled along its length to form a right circular cylinder.

height of cylinder = 1.5 cm

The breadth of the rectangle will be equal to the circumference of the cylinder.

circumference = 2πr (r = radius)

$2\times \pi \times r = 4.4\\r = \frac{4.4}{2\times \pi}\\r = 0.7 cm$

Volume of the right circular cylinder =

$=\pi \times r^{2} \times h\\= 3.14 \times 0.7^{2} \times 1.5\\=2.310 cm^{3}$

Volume :

Volume is the term that refers to the area occupied by a three-dimensional solid shape. It is a measurement of how much space a three-dimensional surface occupies, the cubic metre serves as the S.I. unit for volume. The common volume measurement unit, however, is the litre. A compass box, as an example, has a larger capacity than an eraser inserted inside of it. To calculate the area of any two-dimensional form, we divide the area into equal square units. In a similar way to this, we will calculate the volume of solid objects by dividing it into equal cubical units.

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