Question

two cubes each of 10 cm edge are joined end to end .find the surface area of the resulting cuboid.

Answer 1

Hello Dear 
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When edge of 10 cm  Cube join together the dimensions of formed cuboid are 
@Length  (l) = 20 cm
@Breadth(b)=10 cm 
@Height  (h)=10 cm
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Total Surface Area Of cuboid = 2(lb+bh+hl)
                                               = 2(20X10+10X10+10X20)
                                               = 2(200+100+200)          
                                               = 2(500)
                                               = 1000 cm²
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Answer 2

here is your answer user