There is a circle in the coordinate plane. If the radius doubles, the area increases by 108 units. Find the new radius of the circle
+37146 pi r^2 = original area
pi (2r)^2 = pi r^2 + 108
4pi^2 pi = pi r^2 + 108
3 pi r^2 = 108
r = 3.385 new radius =6.77 units
+37146 pi r^2 = original area
pi (2r)^2 = pi r^2 + 108
4pi^2 pi = pi r^2 + 108
3 pi r^2 = 108
r = 3.385 new radius =6.77 units
