Angle size = 20 x 20 x 4
Density weight of steel = 7850 kg/ m3
Formula = Volume x Density weight
» Volume of "A" = 20 x 4 x 1m.
Change in meter = 20 ÷ 1000 x 3 ÷1000
= 0.02 x 0.004 x 1
= 0.00008
» Volume of "B" = 16 x 4 x 1m
Change in meter = 16 ÷ 1000 x 4 ÷ 1000
= 0.016 x 0.004 x 1
=0.000064
» Volume = A + B
= 0.00008 + 0.000064
=0.000144
Formula = Volume x Density
w =0.000144 x 7850
Weight =1.1304 kg / m
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