## Elementary Geometry for College Students (5th Edition)

Points A and B have symmetry with respect to point C. To find the coordinates of C given the points: A(2a,0) and B(0,2b) C is the mid point of A and B M=($\frac{x1+x2}{2}$, $\frac{y1+y2}{2}$) C = ($\frac{2a+0}{2}$, $\frac{0+2b}{2}$) C(a,b)