fencing of a circular field of diameter 21 m is erected and placed around a square field . what is the dimension of the square field .
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Answer:
33 m is the square's side.
Step-by-step explanation:
Acc. to ques, fencing of a circular field of diameter 21 m is erected and placed around a square field.
Thus, the circumference of circular field = perimeter of the square field
=> 2πr = 4a (a is the square's side and r is the circle's radius)
=> πr = 2a (Dividing whole equation by 2)
=> (22/7)*21 = 2a (Always take π as 22/7 whenever radius/diameter is divisible by 7)
=> (22)(21/7) = 2a
=> (22)(3) = 2a
=> 22*3 = 2a
=> 66 = 2a
∴ a = 66/2 => 33 m
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