8.4+(winbr5)

Side - Splitting Theorem
A line parallel to one side of the triangle divides the other two sides proportionally.

Two-Transversal Proportionality Corollary
Three or more parallel lines divide two intersecting transversals proportionally.

//This picture is an example of how triangles can be split into segments.//

Side - Splitting Theorem __upper left__ = __upper right__ lower left lower right 12 /16 = 15 / x __12x__ = __240__ 12x 12x x=20

AD / DF equals AE / EG 4/3 equals 4 EG EG = 3 DF/FB equals EG/GC 3/3 equals 3/GC GC=3 AD/AF equals DE/FG 4/7 equals 2/GF GF = 3.5 AD/AB equals DE/BC 4/8 equals 2/BC BC=4
 * Two - Transversal Proportionality Corollary**
 * definition of similar triangles**

http://shs.smyrna.k12.de.us/users/amorabit/Geometry%20Powerpoints%5Cchapter08%5Clesson8_4.ppt