The document discusses proportional line segments formed when a line parallel to one side of a triangle intersects the other two sides. It states that if a line parallel to one side of a triangle intersects the other two sides, it divides those sides proportionally. An example problem demonstrates finding the value of x given lengths of line segments intercepted by parallel lines intersecting two transversals. The document concludes by thanking the reader and providing attribution for the material.

1. RATIO LINE SEGMENT ON
PARALLEL LINES
If a line is PARALLEL to one side of
a triangle and intersects the two other
sides, then it divides those sides
PROPORTIONALLY

2. RATIO LINE SEGMENT ON PARALLEL LINES
c
a
f •
b d
e

3. EXAMPLE
Find the value of x !
7
5
x
12

4. RATIO LINE SEGMENT ON
PARALLEL LINES
If three parallel lines intersect two
transversals, then the segments
intercepted on the transversals are
PROPORTIONAL

5. 
a c
b d

6.  Solve for x and y
6 5
x 12,5
9 y

7. Thank you 
SMPK PENABUR GADING SERPONG
2012