Question

abcd is square park of side 10m. it is divided into 4 equal semicircular parts. semi circular flower beds are made. find the area of shaded region​

Answer 1

Side of square = 7m = Diameter of swmi-corcle.

∵ All four square are equal.

∴ Diameter are same for all semi-circle.

∴ Radius =

2

7

m.

∴ Area of one semi-circle =

2

π

(

2

7

)

2

=

7×2

22

×

4

7×7

m

2

∴ Area of four such semi-circle =4×

4

77

m

2

=

77 m

2

∴Area of shaded region =77 m

2

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