A hollow iron pipe is 10 cm long and its external diameter is 18 cm. I – McqOptions

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1.	A hollow iron pipe is 10 cm long and its external diameter is 18 cm. If the thickness of the pipe is 2 cm and iron weighs 8.5 g/cm3, then the weight of the pipe from the following is closest to:
A.	8.54 kg
B.	9.54 kg
C.	7.54 kg
D.	5.54 kg
Answer» B. 9.54 kg

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