Question

The radius of a cylindrical tank is 14 m. And height 20 m. Is.Find the area of ​​curvature of the cylindrical tank.(ii) Find the total surface area of ​​a cylindrical tank.(iii) Find the volume of a cylindrical tank.​

Answer 1

Answer:

1760 first answer and

third is 12320 answer

I hope this is helpful for you

Step-by-step explanation:

in image

Answer 2

Before, finding the answer. Let's find out how we can find the answer.

• In this question, we are asked to find the Area, Total Surface Area, and Volume of the Cylindrical tank.
• So, to find the Area, we must use the formula :

$\boxed{ \sf Curved \: Surface \: Area = 2 \pi r h}$

• Next, to find the Total Surface Area of the Cylindrical Tank, we must use the formula :

$\boxed{ \sf Total \: Surface \: Area = 2 \pi r ( r + h)}$

• At last, to find the Volume of the Cylindrical Tank, we must use the formula :

$\boxed{ \sf Volume \: of \: Cylindrical \: Tank = \pi r^2 h}$

____________________________

Given :

• Radius = 14 m
• Height = 20 m

To find :

• Area
• Total Surface Area
• Volume

Solution :

Area of Cylindrical Tank = Curved Surface Area

                                        = 2πrh

                                        $\sf = 2 \times \dfrac{22}{7} \times 14 \times 20$

                                        $\sf = 2 \times \dfrac{22}{7} \times 280$

                                        $\sf = \dfrac{22}{7} \times 560$

                                        $\sf = \dfrac{12320}{7}$

                                        $\sf = 1760$

Therefore, the Area of the Cylindrical Tank is 1760 cm².

Total Surface Area = 2πr (r + h)

                               $\sf = 2 \times \dfrac{22}{7} \times 14 \times (14+ 20)$

                               $\sf = 2 \times \dfrac{22}{7} \times 14 \times (34)$

                               $\sf = 2 \times \dfrac{22}{7} \times 476$

                               $\sf = \dfrac{22}{7} \times 952$

                               $\sf = \dfrac{20944}{7}$

                               $\sf = 2992$

Therefore, the Total Surface area of the Cylindrical Tank is 2992 cm².

Volume of Cylindrical Tank = πr²h

                                             $\sf = \dfrac{22}{7} \times 14^2 \times 20$

                                             $\sf = \dfrac{22}{7} \times 196 \times 20$

                                             $\sf = \dfrac{22}{7} \times 3920$

                                             $\sf = \dfrac{86240}{7}$

                                             $\sf = 12320$

Therefore, the Volume of the Cylindrical Tank is 12320 cm³.