Answer:
Approximately 22 or 7πcm
Step-by-step explanation:
The ratio between the circumference of a circle and its diameter is π. We commonly write c=2πr, using the radius instead and doubling.
In the given example, we are told that the diameter is
7 cm. So using the common approximation π≈[tex]\frac{22}{7}[/tex] we find that the circumference is approximate:
[tex]\frac{22}{7} * 7cm= 22 cm[/tex]
