Question

A hemispherical tank is made of 1 cm thick iron sheet. If its internal radius is 1 m, then find the volume of the steel used in making the tank.​

Answer 1

Answer:

63487.81 cm³

Step-by-step explanation:

Find the outer radius:

Outer radius = 1 m + 1 cm  

Outer radius = 100 cm + 1 cm

Outer radius = 101 cm

Find the volume of the iron:

Volume = 2/3 π(r1³ -r2³)

Volume = 2/3 π(101³ -100³)

Volume = 63487.81 cm³ (or 0.06 m³)

Answer:  63487.81 cm3

Answer 2

Answer:

63487.81 cm³

Step-by-step explanation:

Find the outer radius:

Outer radius = 1 m + 1 cm  

Outer radius = 100 cm + 1 cm

Outer radius = 101 cm

Find the volume of the iron:

Volume = 2/3 π(r1³ -r2³)

Volume = 2/3 π(101³ -100³)

Volume = 63487.81 cm³ (or 0.06 m³)

= 63487.81 cm³