Question

Which is an equivalent equation solved for r?

The circumference of a circle can be found using the formula C = 2πr.

r=Cπ
r=C(2π)
r= C over 2π
r= 2π over c

Answer 1

Answer:

r= C over 2π

Step-by-step explanation:

C =  2πr

To solve for r, divide each side by  2π

C/  2π =  2πr/  2π

C/  2π =  r

Answer 2

Answer: r= C over 2π or $r=\dfrac{C}{2\pi}$

Step-by-step explanation:

Formula to find the circumference of a circle is given by :-

$C=2\pi r$, where r is the radius of the circle .

To find the formula for r , we need to divide both sides by $2\pi$, we get

$r=\dfrac{C}{2\pi}$

Hence, an equivalent equation solved for r will be :-

$r=\dfrac{C}{2\pi}$ i.e. r= C over 2π