AREA OF SQUARE FLOOR IS 8000SQUARE METRE. IT IS PAVED WITH 10 SQUARE TILES OF EQUAL SIZE. WHAT SHOULD POSSIBLY BE THE LENGTH OF SIDE OF TILE THAT CAN BE USED TO COVER THE FLOOR.

Answer 1

well, since the 10 tiles cover the floor, each must have area 8000/10 = 800m^2

so, the tiles must have side length 20√2

unfortunately, you cannot cover a square floor with 10 square tiles, since 10 is not a perfect square.