Three identical cubes of side 4cm are joined end to end. Find the total surface area
and lateral surface area of the new resulting cuboid.
Answers
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2
Step-by-step explanation:
When such three cube are joined end to end then length(l) of resulting cuboid =12cm
or width (b) of resulting cuboid =4cm
and height (h) of resulting cuboid =4cm
surface area of resulting cuboid =2(lb+bh+hl)
=2(12×4+4×4+4×12)
=2(48+16+48)
=2(96+16)
=2(112)=224cm
2
Surface area of cube =6l
2
=6×(4)
2
=256cm
2
Ratio =
area of cube
area of cuboid
=
256
224
=
64
56
=
8
7
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