A hollow cylindrical pipe is 210cm long. Its outer and inner diameters are 10cm and 6cm respectively. Find the volume of the copper used in making the pipe (in cubic cm).

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Solution

Outer radius = 5 cm

Inner radius = 3 cm

So, volume of cylinder used = (Outer volume - Inner volume)

= $π$ $R^{2}$ H- $π$ $R^{2}$ H

= 42240 ${c m}^{3}$

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A hollow cylindrical pipe is 210cm long. Its outer and inner diameters are 10cm and 6cm respectively. Find the volume of the copper used in making the pipe (in cubic cm). ___

Outer radius = 5 cm Inner radius = 3 cm So, volume of cylinder used = (Outer volume - Inner volume) = πR2H- πR2H = 42240cm3

A hollow cylindrical pipe is 210cm long. Its outer and inner diameters are 10cm and 6cm respectively. Find the volume of the copper used in making the pipe (in cubic cm).

___

Outer radius = 5 cm

Inner radius = 3 cm

So, volume of cylinder used = (Outer volume - Inner volume)

= $π$ $R^{2}$ H- $π$ $R^{2}$ H

= 42240 ${c m}^{3}$