Two cubes each of side 4cm are joined end to end.Find the surface area of the resulting cuboid
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Answered by
209
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
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
1996simple:
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Answered by
52
Answer: 160cm²
Step-by-step explanation:
The figure obtained on joining of two cubes of side 4cm is cuboid of length 8cm, breadth 4cm and height 4cm.
So we know that the surface area of cuboid=2(lb + bh + lh)
Where l=8cm, b=4cm, h=4cm
= 2× [ (8×4) + (4×4) + (4×8) ]
= 2× [ 32+ 16+ 32]
= 2× [80]
= 160cm²
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