Question

Four equal circles, each of radius 5 cm, touch each other as shown in the figure. Find the area included between them. (Take π= 3.14)

Answer 1

Required area = Area of square ABCD - Area of 4 quadrants

Required area = ( 10 cm x 10 cm ) - `1/4` πr²

Required area = 100 - `= 1/4xx22/7xx5xx5`

Required area = 100 - 78.57 cm²

Required area  = 21.43 cm²