30 !
given: the coordinates of rhombus wxyz are w(0, 4b), x(2a, 0), y(0, -4b), and z(-2a, 0).
prove: the segments joining the midpoints of a rhombus form a rectangle.
as part of the proof, find the midpoint of yz.

Triangle xyz, with vertices x(-2, 0), y(-2, -1), and z(-5, -2), undergoes a transformation to form triangle x? y? z? , with vertices x? (4, -2), y? (4, -3), and z? (1, -4). the type of transformation that triangle xyz undergoes is a . triangle x? y? z? then undergoes a transformation to form triangle x? y? z? , with vertices x? (4, 2), y? (4, 3), and z? (1, 4). the type of transformation that triangle x? y? z? undergoes is a .