Units of Area

Kilogram (kg) is a unit of weight, while the others measure area.

The area of a square is found by multiplying its side by itself. For a square with 1 cm sides, the area is $1cm\times 1cm=1c{m}^2$.

15 square metres means the area can fit 15 squares, each measuring $1m\times 1m$.

To convert, divide by 100 since $1c{m}^2=100m{m}^2$. So $4500÷100=45c{m}^2$.

Since $1m^2=10000c{m}^2$, divide 2500 by 10000 to get $0.25m^2$.

First calculate the area in square centimetres: $80\times 50=4000c{m}^2$. Since $1m^2=10000c{m}^2$, divide $4000÷10000=0.4m^2$.