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A metallic pipe whose external and internal diameters are 10 cm and 8 cm has a height of 3.5 cm find the volume of the metal
GIven: A metallic pipe whose external and internal diameters are 10 cm and 8 cm has a height of 3.5 cm
To find: Volume of the metal
Solution:
The external diameter of the pipe = 8 cm
The internal diameter of the pipe = 6 cm
External radius = 4 cm and it is denoted as 'R'
Internal diameter = 3 cm and it is denoted as 'r'
Height of the pipe 'h' = 3.5 cm
Volume of the metal = Outer volume of pipe - Inner volume of pipe
= πR2h - πr2h
= (22/7$ \times $42$ \times $3.5) - (22/7$ \times $32$ \times $3.5)
=176 - 99
Volume of the metal = 77 cm3
Updated on: 10-Oct-2022
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