Question

6: question please tell

Answer 1

area of square courtyard = 60 m×60m

= 3600 m^2

area of tile = 20 *20 cm^2

= 400 cm^2

tiles needed = 3600 m^2/ 400 cm^2

3600 m^2 = 36 000000cm ^2

36 000 000/ 400

=90000

90000 tiles will be needed