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formula is l*b*d (Assume depth as 0.15m)
Area=l*b=2000m2*depth=2000*0.15=300cu.m
Depending upon size of rods and spacing, steel should be calculated
Assume steel for slab is 90-120 kg/m3
Now for 300 m3 concrete, steel required is 300*120=36000/1000=36Tonnes
