An iron pipe is 21 m long and its exterior diameter is 8 cm. If the thickness of the
pipe is 1 cm and iron weight is 8 g/cm, find the weight of pipe.
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An iron pipe is 21 m long and its exterior diameter is 8 cm. If the thickness of the
pipe is 1 cm and iron weight is 8 g/cm, find the weight of pipe.
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Step-by-step explanation:
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Let external diameter be =8cm & =8−1−1=6cm
⇒ 8cm & =8−1−1=6cm
⇒Therefore, =3cm & =4cm
Volume of hollow cylindrical pipe=
⇒π( ) × h
⇒
=462cm³
3.696kg answer
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