Triangle ABC has coordinates A(2, 2), B(2, -2), and C(8, -2). Triangle DEF has coordinates D(-3, -5), E(-3, -3), and F(-6, -3). Use coordinate geometry to determine if these two triangles are similar. If they are not similar, state the reason.

Greg is designing a clock face. using the center of the clock as the origin, he keeps its diameters at 10 units. match the positions for the hours on the clock face to their corresponding coordinates. 3 o'clock (0,-5) 6 o'clock (5,0) 9 o'clock (0,5) 12 o'clock (-5,0)