Question

Ramesh had a square cardboard of side 1m . He made a cubical box of side 30 cm using it . Find the area of cardboard wasted

Answer 1

Answer:

Area of total amount of cardboard = 1m²

Surface area of the cubical box = 6 * l²

l = length of side of cubical box.

6l² = 6 * 30 * 30

= 5400cm²

= 54m²

So just subtract 54 and 1 to find the waste.

= 53m²