Question

Hii friends

The diameter and height of a cylindrical tank are 70 cm and 1 m respectively. How many litres of milk can be stored in it at the most???

Answer 1

Given ,
Diameter d = 70cm= 70/100 m = 0.7m
height h= 1m

d= 2(radius)
Radius = d/2= 0.7/2 m= 0.35 m
The Shape of the tank is Circular cylinder

Volume of circular cylinder is given by
V= (Area of Base) * (Height)
V=(Πr²)*h
{°•° Base is Circle,Area = Πr²}

Volume of circular cylinder,V= Πr²h

Substitute r= 0.35 m and h= 1m
we get,
V=Π(0.1225)(1) m³
V= 0.384 m³

we have 1m³ = 1000 lts
Then V= 0.384*1000= 384 lts

•°• 384 litres of milk can be filled atmost.

Hope it helps
;)

Answer 2

As Litre is the unit of Volume.

Let us Find the Volume of the Milk tank which is Cylindrical in shape.

We know that the Volume of a Cylinder is given by : Area of the Circular base × height of the Cylinder

⇒ Volume of a Cylinder : πr² × h

where 'r' is the radius of the circular base and 'h' is the height of the cylinder

Given that Diameter = 70cm and Height = 1m

⇒ Radius = 35cm = 0.35m

⇒ Volume of the Milk tank = 22/7 × 0.35 × 0.35 × 1

⇒ Volume of the Milk tank = 22 × 0.05 × 0.35 = 0.385 m³

We know that 1 m³ = 1000 litres

As the Volume of the Milk tank is the Capacity of the Milk stored

The Number of litres that can be stored in it at the most = 0.385 × 1000 litres

The Number of litres that can be stored in it at the most = 385 litres