Question

Two equal cubes whose volume is 216cm³each one .if we joined side by sidto form cuboid. Find it's surface area of cuboid

Answer 1

Answer:

360cm^2

Step-by-step explanation:

length of side of a cube=6cm

then if we join two cubes to form a cuboid,

length=12cm,breadth=6cm,height=6cm

surface area of a cuboid=2(lb+bh+lh)

=2(12*6+6*6+12*6)

=2(72+36+72)

=2(180)

=360cm^2

Answer 2

Answer:

360cm2

Step-by-step explanation:

Let the side of each cube be a. Then a

3

=216

∴a=

3

216

=6cm

Now the two cubes of side 6 cm are joined to form a cuboid. So,

∴l=6+6=12cm,b=6cm,h=6cm

∴T.S.A=2(lb+bh+lh)

=2[(12×6)+(6×6)+(12×6)]

=2[72+36+72]

=2×180=360cm

2