Question

the circle has a radius of 7. the circumference of a circle is b. which expression best represents the value of π?
o $\frac{7}{b}$
o $\frac{b}{7}$
o $\frac{b}{14}$
o $\frac{14}{b}$

Explanation:

Step1: Recall circumference formula

The formula for the circumference of a circle is $C = 2\pi r$. Here, $r = 7$ and $C=B$. So, $B = 2\pi\times7$.

Step2: Solve for $\pi$

Starting from $B = 14\pi$, we can isolate $\pi$ by dividing both sides of the equation by 14. We get $\pi=\frac{B}{14}$.

Answer:

$\frac{B}{14}$