2πr=What in mathematical no.
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Answer:
IT IS THE FORMULA OF SOLVING CIRCUMFERENCE OF CIRCLE....
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Answer:
its the circumference of the circle
c=2πr
Step-by-step explanation:
the length of an Arc can be calculated by l=rθ
where θ is an angle subtended by an arc of radius r at the center.
in case of a complete circle the total angle θ=360=2π so the length of circle is called the circumference of it which is c=2πr.
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