Question

34. Two cubes each of volume 8 cm are joined end to end, then find out the
total surface area of the resulting cuboid
​

Answer 1

Step-by-step explanation:

SOLUTION,

GIVEN,

VOLUME OF EACH CUBE = 8cm³

SO THE LENGTH OF EACH SIDE =

$\sqrt[3]{8}$

= 2cm

TOTAL SURFACE AREA OF 1 CUBE = 6a²

=>

$6 \times {2}^{2}$

=> 24cm²

TOTAL SURFACE AREA OF TWO CUBE = 2X 24cm² = 48cm²

SO, THE TOTAL SURFACE AREA OF THE RESULTING CUBOID WILL BE 48cm²

Answer 2

Answer:

volume of cube =8cm^3

a^3=8

=cuberoot 8

=2cm

now,

length of resulting cuboid =2+2=4cm

breadth =2cm

height =2cm

T. S. A. of cuboid =2(lb+bh+hl)

=2(4*2+2*2+2*4)

=40cm^2