Plan a coordinate proof to show that the midpoints of the sides of an isosceles trapezoid form a rhombus. ​a) Name the coordinates of isosceles trapezoid​ TRAP, shown to the​ right, with bottom base length​ 4a, top base length​ 4b, and EG2c. The​ y-axis bisects the bases.
​b) Write the​ "Given" and​ "Prove" statements.
​c) How will you find the coordinates of the midpoints of each​ side?
​d) How will you determine whether DEFG is a​ rhombus?