Answer Posted / lokesh sahu

example--- 1)--6mm dia bar= (d*d)/162
= 6*6 /162
= 36/162
= 0.22 per running meter kg
2)--8mm dia bar = (d*d) /162
= 8*8 /162
= 64/162
= 0.39 per runnig meter kg
many dia steel bar calculation same--10mm,12mm,16mm

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