If a cube of side length 5 cm is placed on the top of a cuboid of dimension 20 cm × 10 cm × 12 cm. Find the outer surface area of the shape formed.
If a cuboid of dimensions 10 cm × 15 cm × 5 cm is cut to form cubes of sides 5 cm, then what is the difference between the sum of the surface areas of these cubes and the surface area of the original cuboid?
Two identical cubes of side 4 cm are placed one above the other, forming a cuboid. Find the total surface area of the cuboid thus formed.