Question

two identical cubes each of total surface area of 12cm sqaure are joined end to end what is total surface area of cuboid formed
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Answer 1

If 2 cubes come together end to end resulting shape will be cuboid of dimension

length =12+12=24 cm

breadth =12 cm

height =12 cm

∴ Surface area =2[lb+bh+hl]

=2[24×12+12×12+12×24]

=2[288+144+288]

=2×720

=1440 cm^2