Question

Two cubes each of volume 27^3 are joined end to end to from a solid. Find the surface area of the resulting cuboid.v

Answer 1

each cube volume is 27 ^3

a^3=27^3

a=27

side of each cube is 27

h=27

b=27

l=27+27=54

surface area of cuboid is 2(lb+bh+hl)

7290square units

Answer 2

Answer:

step by step :

if volume of a cube = a^3=27^3

therefore, a=27

the resultant cuboid of -

length=27+27=54unit

breadth=27 unit

height = 27unit

hence,

Total surface area = 2(lb+bh+hl)

= 2(54×27+27×27+54×27)

=2(1458+729+1458)

=2(3645)

=7290 unit^2