Two cubes each of volume 512 cm^3 are joined end to end. find the surface area of the resulting cuboid.
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each edge = 8
surface area = 12 a.a - 2 a.a ( - 2 a.a due to end to end joined which would make 2 surfaces of both cube hidden)
= 10 a.a
= 10.8.8
= 640
surface area = 12 a.a - 2 a.a ( - 2 a.a due to end to end joined which would make 2 surfaces of both cube hidden)
= 10 a.a
= 10.8.8
= 640
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