Two identical solid cube of side 4 cm are joined end to end .Then the total surface area of the resulting cuboid is *
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Step-by-step explanation:
two cubes are joined end to end
means
breadth=4cm no change
height=4cm. no change
but
length= 4cm + 4cm 8cm
put all the values in the formulae
AREA OF CUBOID = 2(L×B+B×H+H×L)
AREA OF CUBOID = 2(8×4+4×4+4×8)
AREA OF CUBOID = 2(80)
AREA OF CUBOID = 160cm^2
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