an iron pipe is 42 cm long and its Xperia radius 4 cm if the thickness of the pipe is 1 cm and iron weight hundred gram by centimetre cube the weight of the pipe
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Answer:
Answer is 118800g=118.8kg
Step-by-step explanation:
1=42 r=4cm thickness = 1cm weight of iron
volume of cylinder= πr^2h
volume of iron pipe =π(4+1)2 42-π×4^2×42
=π×42(25-16)
=22/7×42×9=1188cm2
weight of 1cm3 iron =100g
weight of 1188cm3=1188×100=118800g
=118.8kg
hope it is helpful to you.
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