Question

2 cube each of volume 64 cm cube are joined end to end find the surface area of the results cuboid ​

Answer 1

Answer:

The volume of cube 64cm3

Side of cube 364=4cm

Length of resulting cuboid 4+4=8

Surface area 

=2(lb+hl+bh)

=2(4(4)+4(8)+8(4))=2(16+32+32)=2(80)=160cm2

Answer 2

Answer:

160 cm²

Step-by-step explanation:

let x be the side of the cube.

Volume of Cube, x³ = 64 cm³

⇒ x = 4 cm

Now, length of cuboid = 4cm + 4cm = 8cm

breadth of cuboid = 4cm

Height of cuboid = 4 cm

So, volume of cuboid = 2*8*4 + 2*4*4 + 2*4*8 = 160cm²