The thickness of a metal pipe is 1cm. It's inner diameter is 14cm. What is the volume of metal needed for a pipe of length 1m? (Use pie =3.14)
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4710 cm³
Step by step explanation ( || = pie )
Thickckness = 1 cm,
Inner radius = 7 cm
external radius = 8 cm
Volume of metal pipe = || r²h
|| h ( R² - r² )
3.14 × 100 / 100 ( 64 - 49 )
314 × 15
4710 cm³
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