Well that's would be 9/5 = 1 4/5
A rational expression is undefined if the denominator is zero. Since the denominator is
, the expression is undefined if

Answer: 0.2pi
Step-by-step explanation:
1. Find the area of the entire circle
2. Set up a proportion that compares the relationship of the Area of sector and the Area of circle to the Arc measure and the circle measure
3. Solve!