Question

a circle has a radius of 7. what is the circumference? (use π = 22/7) a) 22 b) 44 c) 154 d) 308

Explanation:

Step1: Recall circumference formula

Circumference $C = 2\pi r$

Step2: Substitute values

$r=7$, $\pi=\frac{22}{7}$ → $C=2\times\frac{22}{7}\times7$

Step3: Calculate result

$2\times22=44$

Answer:

B) 44