18 10x10-inch tiles.
480
1,080 tiles exactly.
264
440 6-inch square tiles.
18 10x10-inch tiles.
1296 Tiles
480
1,080 tiles exactly.
616 3x6 inch tiles are needed to cover exactly 77 square feet.
You will need at least 192 tiles.
264
440 6-inch square tiles.
It will require a minimum of 1,462 tiles. That number will cover about 1,850.34 square feet.
If the tiles are 1 foot squares, it will take 1,650 of them to cover 1,650 square feet. If the tiles are 16 inch square (1-1/3 square feet, each), then it would take 1,238 tiles.
252/1.5 = 168
A 12 by 12 inch tile is one square foot. That means it will take 650 tiles, plus spoilage and trim.