Answer:
2 PI
Step-by-step explanation:
so the segment appears to be 1/4th of the circle, being shown by the pi/2 as displayed. Thus, we can solve for the circumfrence and divide that answer by 4. since 2*pi*r is the way to calculate this problem, it would be 2 times pi times 4, giving us the whole circumfrence of 8pi. Divide that by 4, and you have the solution of 2 pi
