Eight cubes each of the edge 1 cm are joined end to end as shown in the figure. The surface area of the cuboid thus formed is
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Step-by-step explanation:
l=8cm
b=1cm
h=1cm
Totalsurface area of new figure so obtained=
2(lb+bh+hl)
=2(8*1+1*1+1*8)
=2*17=34cm^3
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