Polygon abcd is plotted on a coordinate plane and then rotated 90° clockwise about point c to form polygon a′b′c′d′. match each vertex of polygon a′b′c′d′ to its coordinates.
(5, 6)
a′
(4, 2)
b′
(8, 5)
c′
(4, 5)
d′
(5, 1)
(8, 2)
(4, 8)