benhimmel88 benhimmel88 07-05-2020 Mathematics contestada A circle has the equation (x+11)2+(y+6)2=324. What are the coordinates of the center and the length of the radius? The coordinates of the center are (11,6), and the length of the radius is 18 units. The coordinates of the center are (−11,−6), and the length of the radius is 324 units. The coordinates of the center are (11,6), and the length of the radius is 324 units. The coordinates of the center are (−11,−6), and the length of the radius is 18 units.