Question

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Answer 1

Step-by-step explanation:

Circumference of the two semi circle =

Circumference of one semi circle with diameter = 20.3

Radius = 20.3/2

Circumference of semi circle = 2πr/2 = πr

Circumference = 22/7*20.3/2 = 31.9

Circumference of second semi circle =

Diameter = 18.2

Radius = 18.2/2

Circumference = 22/7*18.2/2 = 28.6

Total perimeter of the field = 18.2+20.3+31.9+28.6

=99 m

Perimeter= Total length of the boundary