Louis is tilling the rectangular fool measuring 8.6 ft by 12 ft. how many 3by3 inch tile will Louis need to tile the floor with out over lapping? Guys i know the answer(408) i just need to figure out how to get it thank you!

Question

Louis is tilling the rectangular fool measuring 8.6 ft by 12 ft. how many 3by3 inch tile will Louis need to tile the floor with out over lapping?   Guys i know the answer(408) i just need to figure out how to get it thank you!

directrix · Answer

A = l * w
A = 8.6 (12)
A = 103.2 square feet

A 3 inch by 3 inch square tile is 3/12 feet by 3/12 feet.
Or, 1/4 foot by 1/4 foot = 1/16 square foot of area which is .0625.
103.2 square feet divided by .0625 square feet =  1651.2 of the small tiles are required