1. Section 7–1 Geometry PreAP, Revised ©2014 viet.dang@humble.k12.tx.us
Geometric Mean
Section 7–1
Geometry PreAP, Revised ©2014
2/24/ :22 PM
7-2: Similarity

2. Geometric Mean
A term between two terms of a geometric sequence is the geometric mean of the two terms.
Used in a proportion to solve altitude.
The equation is 𝒂𝒃
2/24/ :22 PM
7-2: Similarity

3. Example 1 Find the geometric mean of 3 and 300. 2/24/2019 11:22 PM
7-2: Similarity

4. Your Turn
Find the geometric mean of 4 and 10. Leave answer in simplified square root.
2/24/ :22 PM
7-2: Similarity

5. How does this Relate to Geometry?
2/24/ :22 PM
7-2: Similarity

6. Example 2 Solve for a, b, c, and f where d = 4 and e = 10. Proportions
Answers
2/24/ :22 PM
7-2: Similarity

7. Your Turn 12 is the geometric mean between 8 and what other value?
2/24/ :22 PM
7-2: Similarity

8. Assignment
Worksheet
2/24/ :22 PM
7-2: Similarity