Question

Two cubes each of volume 64 cm cube are joining end to end to form a cuboid. Find the Total Surface Area of the resulting cuboid.

Answer 1

Solution :-

➡ Volume of cube = (a) ^3 so

${a}^{3} = 64 \\ \\ a = 4 \: cm$

➡ So the sides of cuboid that is l= 4 , b= 8 and h = 4

➡ Total surface area of cuboid

$2(lb + bh + hl) \\ \\ = 2(32 + 32 + 16) \\ \\ = 2(80) \\ \\ = 160 \: c {m}^{2}$

Hope it helps!! ☺

Answer 2

HeYa...✌️

Answer:

Volume of Cubes = 64 cm cube.

a3 = 64

a = 4 cm

So, the side of cube = 4 cm

Then the side of cuboid = 4+4 = 8cm.

l=8cm

b=4cm

h=4cm

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

=2(32+16+32)

=2(80)

=160cm sq.

I hope it helps ya!