The circumference of circle with radius 18 inches in terms of pi is 36π inches
From the given figure, radius "r" = 18 inches
We have to find circumference of circle
circumference would be the length of the circle if it were opened up and straightened out to a line segment.
The circumference of circle is given as:
[tex]\text {circumference of circle }=2 \pi r[/tex]
Where "r" is the radius of circle
Substituting the value r = 18 inches in above formula,
[tex]\text {circumference of circle }=2 \times \pi \times 18=36 \pi[/tex]
Thus circumference of circle in terms of pi is 36π inches