Answer :
bob has to tile a rectangular floor that is 10 by 20 feet
he has tiles with tiles that are 1 foot square
how many tiles does he need
area=legnth times wdith=10 times 20=200
200 square feet=200 tiles
he has tiles with tiles that are 1 foot square
how many tiles does he need
area=legnth times wdith=10 times 20=200
200 square feet=200 tiles