Circumference
The circumference of a circle is its perimeter.
We can solve for the circumference using the following formula:
- [tex]C=2\pi r[/tex] where r is the radius of the circle
Solving the Question
Part A
We're given:
- The radius of the circle is 14 cm
Plug the given information into the formula for circumference:
[tex]C=2\pi r\\C=2\pi (14)\\C=28\pi[/tex]
Therefore, the circumference of the circle is 28π cm.
Part B
Replace π with [tex]\dfrac{22}{7}[/tex]:
[tex]C=28\pi\\\\C=28*\dfrac{22}{7}\\\\C=4*22\\C=88[/tex]
Therefore, the circumference of the circle with [tex]\pi=\dfrac{22}7}[/tex] is 88 cm.
