You'll find lots of Khan video explanations here.
http://www.google.com/webhp?source=search_app#hl=en&tbo=d&sclient=psy-ab&q=perpendicular+bisectors+khan&oq=perpendicular+bisectors+khan&gs_l=serp.3...30610.31793.1.32561.5.5.0.0.0.0.208.696.1j3j1.5.0.les%3B..0.0...1c.1.iFU0Q1snfeQ&pbx=1&bav=on.2,or.r_gc.r_pw.r_qf.&fp=b963d1d3e1903209&bpcl=37643589&biw=711&bih=453
Need help on perpendicular bisectors!:(
2 answers
What is a transformation that creates a mirror image?
1 answer