[tex]\bf \textit{circumference of a circle}\\\\ C=2\pi r~\hspace{12em}\cfrac{C}{2\pi }=r[/tex]
Answer:A) r= C over 2 pie
Step-by-step explanation:
Given: The circumference of a circle can be found using the [tex]C=2\pi r[/tex]
To solve the above equation for radius of the circle 'r', first divide [tex]2\pi[/tex] on both sides of the equation, we get
[tex]r=\dfrac{C}{2\pi}[/tex]
Hence, the formula to calculate radius 'r' is the circle will be : [tex]r=\dfrac{C}{2\pi}[/tex]