C 2πr formula

Asked by maham237 @ in Mathematics viewed by 341 People

The formula for the circumference of a circle is C = 2πr, where r is the radius. Rearrange the formula to solve for r and select the correct option below. (1 point)
r = C over 2 pi
r = 2πC
r = C − 2π
r = 2 pi over C

Answered by maham237 @


The formula for the circumference of a circle is C= 2πr, where ' r ' is the radius.

In order to find the value of r, divide 2π to the other side.

C= 2πr

\frac{C}{2\pi} =r

r =\frac{C}{2\pi}

Option A is the correct answer.

So, if you have any numerical value of C(circumference ) put in the above formula by using the value of π =3.14 (approximately) and you will get the value of radius(r).


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