From the figure we can see that,
Side of the square = 10 cm
We know that area of the square = side x side = 10 x 10 = 100 cm2
Radius of the quarter circle = 5 cm
Area of the quarter circle = (π r2)/4
Area of 4 quarter circle = 4 × (πr2)/4
= πr2
= 3.14 × (5)2
= 78.5 cm2
Area included in the quarter circle = Area of the square – Area of the four quarter circles
Area included in them = (100 – 78.5) cm2
= 21.5 cm2
