Question

When two cubes of edge 2cm are joined end to end, find the surface area of resulting cuboid.

Answer 1

Answer:

104 cm^2

Step-by-step explanation:

Six cubes of edge 2 cm are joined end to end.

So, the length of cuboid would become = 6 × 2 = 12 cm

Height and breadth would be the same 2 cm

We know that, total surface area of a cuboid

= 2(lb + bh + lh)

=> 2(12 × 2 + 2 × 2 + 12 × 2)

=> 2(24 + 4 + 24)

=> 2(52)

=> 104 cm²

So your answer is 104 cm²

Answer 2

$\huge \red {Answer}$

Given,

Edge of cube = 2cm

Cuboid =

• length= 2+2 = 4 cm
• breadth = 2cm
• height = 2cm

$\huge\underline\mathrm {SoLuTiOn}$

• Formula for surface area=2(lb + bh +hl)

Surface area = 2 (4×2 + 2×2 +4×2)

= 2× 20

$\</strong><strong>large</strong><strong> = 40 {cm}^{2}$