Question

The perimeter of a base of the right circular cylinder is 44cm and its hight is 10cm then its not valume is

Answer 1

$\huge{\underline{\color{maroon}{\textbf{~~~Correct Question }}}}$

The perimeter of a base of the right circular cylinder is 44cm and its height is 10cm then its volume is?

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Perimeter of circle,

$\sf \: 2\pi \:r$

Therefore,

$\sf \: 44cm \: = 2\pi \: r$

$= \sf \: r = 7cm$

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Volume of the right circular cylinder,

$\sf = \pi \: {r}^{2} h$

$\sf = \frac{22}{7} \times 7 \times 7 \times 10 {cm}^{3}$

$\sf \: = 1540cm ^{3}$

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Answer 2

Solution:-

Given : Circumference of a cylinder =2πrh=44cm and  height(h)=10cm 

Lateral surface area of a cylinder =2πrh

                                                        = circumference of the base × height of the cylinder

                                                     

 =44×10=440cm2

∴ Lateral surface area of a cylinder is 440sq.cm.

✔Hence it is verified