What is the total area where Dev has to use the glazed paper ?

First of all find the surface area of a single box .

What do we mean when we think about the number of boxes that can fit into the bigger box ?

Have you ever seen a dice ?

Try and apply the formula for the surface area of cuboid .

Do you know that surface area is the total area on the surface ?

What is the difference between a solid shape and a flat shape?

We should know the volume of bigger cube. .

What is the formula for finding the volume of a cuboid ?

First of all in order to find the area of four walls of a room we need to find its lateral surface area and then try to work out the area of cieling .