a reactangle cuboid of length 1.2cm breath 80 cm and height 45 cm find the volume
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l=80cm,
b=40cm,
h=20cm
Therefore,
TSA = 2(lb +bh +hl)=2(80×40+40×20+80×20)=11200 cm^2
LSA = 2(l+b)h=2(80+40)20=4800 cm^2
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