how much iron is needed to make a rod of length 90 cm and diameter 1.4 cm?
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Answer:
Iron needed is 138.3 cm^3 or 138.3 g
Step-by-step explanation:
Amount of iron needed = Volume of the Iron rod
Rod is cylindrical in shape, so it's volume = πr^2h
Now, r = d/2 = 1.4/2
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