The correct value of the length of each square tile is 3½ feet long.
Answer:
Total area of mosaic = 600.25 sq.ft
Step-by-step explanation:
We are told the length of each square tile = 3½ ft.
Area of square = L²
Where L is length of side.
Thus;
Area = 3½ × 3½
Area = 49/4 sq.ft
Now, an array of 7 x 7 means 7 rows and 7 columns
Thus, total number of square tiles = 7 x 7 = 49 tiles
So,
total area of whole mosaic = number of tiles × Area of 1 tile
Total area = 49 × 49/4 = 600.25 sq.ft
