In the figure (ii) given below, ABCD is a square of side 14 cm. Find the area of the shaded region.

Let radius of each circle be r cm. From figure, ⇒ r + r + r + r = 14 ⇒ 4r = 14 ⇒ r = 3.5 cm. Since, radius is same so, each circle will have same area. Area of each circle = πr 2 = = = 22 × 0.5 × 3.5 = 38.5 cm 2 Area of square = (side) 2 = 14 2 = 196 cm 2 . Area of shaded region = Area of square - Area of circles = 196 - 4 × 38.5 = 196 - 154 = 42 cm 2 . Hence, area of shaded region = 42 cm 2 .