Complementary, Supplementary and Vertical Angle practice:

http://www.xpmath.com/forums/arcade.php?do=play&gameid=104

http://www.ixl.com/math/grade-8/identify-complementary-supplementary-vertical-adjacent-and-congruent-angles

https://www.khanacademy.org/math/in-seventh-grade-math/lines-angles/related-angles/e/vertical_angles

http://www.mathgames.com/skill/8.85-complementary-supplementary-vertical-and-adjacent-angles