Question

2 cubes of edge 6cm are joined to form a cuboid find the surface area of a cuboid

Answer 1

Answer:

Step-by-step explanation:

When two cubes are joined end to end, then

Length of the cuboid = 6 + 6 = 12 cm

Breadth of the cuboid = 6 cm

Height of the cuboid = 6 cm

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

= 2(12 x6 + 6×6 + 6×12)

= 2(72 + 36 + 72) = 2(180) = 360 cm2