1. 7-4: Proportions in Triangles
Rigor: apply the side-splitter theorem and the triangle-angle-bisector theorem.
Relevance: ground planning

2. Notes: The Side-Splitter Theorem
Highlight this theorem in your workbook on page 303. The book calls it the Triangle Proportionality Theorem, but it is better known as the Side-Splitter Theorem. We will prove it on pg 303.

3. Example 1: What is KP?

4. Corollary to the side-splitter theorem

5. Example 2: Campsites
What is the length of Site A along the river?

6. Triangle-Angle-Bisector Theorem
If a ray bisects an angle of a triangle, then it divides the opposite side into 2 segments that are proportional to the other 2 sides.

7. Example 3: Solve for y.

8. 7-4 Classwork
Workbook pg 305 ALL

9. Honors: 7-4 Assignments Secondary Assignment:
Primary Assignment: Due Wednesday
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Codes:
Period 2:
Period 4:
Period 6:
Secondary Assignment:
Workbook pg 306 ALL except #6

10. Standard: 7-4 Assignments
Primary Assignment: Due
Website: join.quizizz.com
Codes:
Period 1:
Period 5:
Period 7:
Secondary Assignment:
Workbook pg 306 ALL except #6