Question

. Three cubes of side 3 cm are fixed together , then total surface area of new solid formed is *
1 point
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Answer 1

Answer

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

solution

Answer 2

Step-by-step explanation:

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