Question

2 cubes each of volume 125 cubic cm are joined end to end . find the surface area of the resulting cuboid

Answer 1

Answer:

Volume of cube = 125 cu cm

a^3 = 125

$a = \sqrt[3]{125}$

a = 5 cm

After joining the cubes, the resulting cuboid have following dimensions:

Length = 10 cm

Breadth = 5 cm

Height = 5 cm

Surface area of resulting cuboid

= 2 (lb+bh+hl)

= 2 (10x5 + 5x5 + 5x10)

= 2 (50+25+50)

= 2 (125)

= 250 square cm

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