Answer:
Option: D is the correct answer.
The circumference of the circle in terms of pi is:
D. 78π in.
Step-by-step explanation:
We know that for a circle with radius r the circumference of the circle is given by the formula :
[tex]Circumference(C)=2\pi r[/tex]
Here in the given figure we have: Radius (r)= 39 in.
Hence, the circumference of the given circle is calculated as:
[tex]C=2\pi\times 39\\\\\\C=(39\times 2)\pi\\\\\\C=78\pi[/tex]
Hence, the circumference of circle is:
78π in.
