Answer= 12. hope this helped. almost 100% sure this is right.
Centre of circle = (-2, -3)
Equation of the circle:
( x - ( -2) )² + ( y - (-3) )² = (√2/4)²
(x + 2)² + (y + 3)² = 1/8 (Answer D)
It would be 80 because 2 times 120 is 240. 240 divided by 3 is 80
Check the picture below
notice, the run is half 35
recall slope = rise/run