Question

4. A tank in the shape of a cylinder with
height 20cm and diameter 28cm. Find the
capacity of the tank in litres.

Answer 1

SOLUTION:-

Answer

• 12.32 Liters

Given

• Height = 20cm

• Diameter = 28cm

To find

• Volume of tank

Explanation

• Height = 20cm

• diameter = 28cm

• Radius = d/2 = 28/2 = 14cm

Using Formula,

★ Volume of Cylinder = π r²h

Putting values ,

➡ 22/7×(14)²×20

➡ 22/7 × 14×14×20

➡ 22×2×14×20

➡ 12 ,320 cm³

Now,

Change in liters ,

★ 1cm³ = 0.001 liter

So,

➡ 12320/1000

➡ 12.32 Liters

Hence,

• Volume of cylinder = 12.32 L

_____________

Answer 2

Step-by-step explanation:

height of tank = 20cm

diameter = 28cm

radius = diameter/2 = 14cm

volume of cylinder = π r^2 h

22/7 × 14 × 14 × 20 = 12320 cm^3

12320 cm^3 = 12320 ml

12320 ml = 12320/1000 L = 12.32 L