Question

An open cylindrical tank of radius 70 em contains 385 litres of a liquid. Find the volume of liquid in the tank in cm", (i) the height of liquid in the tank, (iii) the roual surface area of the liquid in contact with the cylindrical tank.​

Answer 1

1. Volume=2695000cm3
2. Height=175cm
3. Total surface area=3157000cm2

Step-by-step explanation:

1)385lt=38500ml

Since the cylinder is open so V=πrh

38500=π×70*h

h=175cm

2) Volume=πr²h=2695000cm³

3)Total surface area=2πr(r+h)

=3157000cm²