Links to regentsprep.org Similar Triangles

Link to solving systems of equations:

http://www.regentsprep.org/Regents/math/ALGEBRA/AE3/indexAE3.htm

Link to similar triangles:

http://www.regentsprep.org/Regents/math/geometry/GP11/indexGP11.htm

Link to mean proportionals in right triangles:
http://www.regentsprep.org/Regents/math/geometry/GP12/indexGP12.htm