10. Find the area and the number of tiles

Peter wants to cover the floor with square tiles of side 20 \(cm\). The floor is in the shape of the square whose side length is 6 \(m\). 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 \(=\) .