Rectangular wall MNOP of a kitchen is covered with square tiles of 15cm length (Fig. 6.19). Find the area of the wall.
Number of square tiles = 28
Length of square tile = 15 cm.
Area of square tile = 15 × 15
= 225 sq.cm
Area of 28 tiles = 225 × 28
= 6300 sq.cm
Area of wall = 6300 sq.cm
42