8. Find the area and the number of tiles

Peter wants to cover the floor with square tiles of side 10 \(cm\). The floor is in the shape of the square whose side length is 20 \(m\). Find the area and the number of tiles that are needed to cover the floor.

 

 

Area of the floor \(=\)  \(sq. \ cm\).

 

The number of tiles \(=\) .