2 cubes each of volume 64 cm are joined end to end. Find the surface a – InterviewSolution

1.

2 cubes each of volume 64 cm are joined end to end. Find the surface area of theresulting cuboid.

Answer»

Volume of cube=side³64=side³side=4 cm

When two cubes are joined, length=4+4=8 cmbreadth=4 cm and height=4cm

Surface area of cuboid=2(lb+bh+hl)=2(32+16+32)=2(80)=160cm²

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