Two cubes each of side 12 cm are joined end to end The surface area of the resulting cuboid is ........

Quantitative Aptitude ( CCS) Mensuration 3D

Two cubes, each of side 12 cm, are joined end to end. The surface area of the resulting cuboid is

1240 sq cm

1440 sq cm

2250 sq cm

4252 sq cm

wo cubes of each side = 12cm
length = 12+12 = 24cm
height = 12cm
breadth = 12cm

Total surface area of new cuboid formed
=2(lb+bh+hl)
=2(24*12+12*12+12*24)
=2(288+144+288)
=2(720) = 1440 cm²

Hence, option 2 is the correct answer.

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