There are two cuboidal boxes as shown in the adjoining figure.
Which box requires the lesser amount of material to make?
Step-1: Find the total surface area of as shown in the figure.
The total surface area of (As is in cuboidal shape )
Length,
breadth, ( As per the given diagram )
Height,
The total surface area of
The total surface area of
The total surface area of
The total surface area of--------- (i)
Step-2: Find the total surface area of as shown in the figure.
The total surface area of (As is in cubical shape )
Side, ( As per the given diagram )
The total surface area of
The total surface area of
The total surface area of--------- (ii)
From (i) and (ii), we can clearly see that total surface area of is lesser than
Hence, requires a lesser amount of material to make it.