Question

The truck's tank is a stainless steel cylinder. Find the surface area of the tank.

(Radius -4 ft, Height - 50ft)​

Answer 1

Answer:

432 π square ft

Step-by-step explanation:

r = 4 ft

h = 50 ft

surface of truck's tank = 2πrh + 2πr² = 2π(4)(50) + 2π(4)²= 432 π square ft

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 Surface Area of the stainless steel cylinder.
• So, to find that, we must use the formula :

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

• Here, we are taking pi as 22/7.

_______________________

Given :

• Radius = 4ft
• Height = 50ft

To find :

• Surface Area

Solution :

We know that,

Surface Area of Cylinder = 2 π r(r+h)

                                          $\sf = 2 \times \dfrac{22}{7} \times 4(4 + 50)$    

                                          $\sf = 2 \times \dfrac{22}{7} \times 4 \times (54)$

                                          $\sf = 2 \times \dfrac{22}{7} \times 216$

                                          $\sf = \dfrac{22}{7} \times 432$

                                          $\sf = \dfrac{22 \times 432 }{7}$

                                          $\sf = \dfrac{9504}{7}$

                                          $\sf = 1357.7$

Therefore, the Surface Area of the Truck's tank is 1357.7 square ft.