Question

2 cubes each of volume 64cm^3 are joined end to end. Find the surface area of the resulting cuboid.

Answer 1

Answer:

Volume of 1 cube = 64cm³

a^3. =. 64 cm³

So, a. = ³√64

a. = 4

so, side of cube = 4cm

Cuboid:-

so, Length = 4cm + 4cm = 8cm

Breadth = 4cm

Height = 4cm

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

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