Question

please give the solution​

Answer 1

Given

Radius of enclosed four circles =7 cm

Diameter of a circle =14 cm

Length of rectangle =4(14)=56 cm  [As four circles cover the length of rectangle ]

Width of rectangle =14 cm                   [As only one circle covers width of rectangle]

(a) Area of rectangle = Length × Width

                                   =56×14=784 cm2

(b) Area of enclosed circle =πr2

                                             =722×7×7

                                             =154 cm2

Area of enclosed four circles =4×156=616 cm2

∴ Area of shaded part =784−616=168 cm2