Geo. Chpt 6

Chapter 6 - Proportions and Similarity

Section 6 - 1: Proportions

Example 1: Write a Ratio

Example 2: Extend Ratios in Triangles

Example 3: Solve Proportions by Using Cross Product

Take the homework quiz at b.socrative.com.

Section 6 - 2: Similar Polygons

Example 1: Similar Polygons

Example 2: Scale Factor

Example 3: Proportional Parts and Scale Factor

Example 4: Enlargement of a Figure

Take the homework quiz at b.socrative.com.

Section 6 - 3:  Similar Triangles

AA, SSS, and SAS Similarity

Example 1: Determine Whether Triangles Are Similar

Example 2: Parts of Similar Triangles

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Section 6 - 4:  Parallel Lines and Proportional Parts

Example 1: Find the Length of s Side

Example 2: Determine Parallel Lines

Example 3: Midsegment of a Triangle

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Example 4: Proportional Segments

Example 5: Congruent Segments

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Section 6 - 5: Parts of Similar Triangles

Example 1: Perimeter of Similar Triangles

Example 2: Angle Bisectors of Similar Triangles
Lessons Still to Come

Example 3: Medians of Similar Triangles
Lesson Still to Come

Example 4: Altitudes of Similar Triangles

Angle Bisector Theorem
Lesson Still to Come