Floor of a room is of dimensions 5 m × 4 m and it is covered with circular tiles of diameters 50 cm each as shown in Figure. Find the area of floor that remains uncovered with tiles. (Use = 3.14)
[4.3 m2]
Solution
Diameter of tile =50cm=0.5m (1m = 100cm)
Radius =
Number of tiles lengthwise = tiles
Number of tiles widthwise = tiles
Total tiles =
Area of floor not covered by tiles = Area of rectangular floor – Area of 80 tiles