Ch. 85 Proportions in Triangles
Learn the lesson By: Elena Soto
Theorems
SideSplitter Theorem
If lines are  to one side of a triangle and intersects of the two sides, it divides then those side even.Corollary To Theorem
If there is 3 lines are  that intersect two transversals, then the segments intercepted on the transversals are proportional
a/b=c/d
TriangleAngleBisector Theorem
Is a ray bisects of a angle of a triangle , then it divides the opposite side into two segments which are even to the other two side of the triangle.
Example: 1 Using 1st theorem SideSplitter Solving for x.
X=3  Example:2 Using 3rd theorem Triangle AngleBisector Finding the value of x.

The end of lesson. Hope you learned!