Section 7–1 Geometry PreAP, Revised ©2014

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Section 7–1 Geometry PreAP, Revised ©2014 viet.dang@humble.k12.tx.us Geometric Mean Section 7–1 Geometry PreAP, Revised ©2014 viet.dang@humble.k12.tx.us 2/24/2019 11:22 PM 7-2: Similarity

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 2/24/2019 11:22 PM 7-2: Similarity

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

Your Turn Find the geometric mean of 4 and 10. Leave answer in simplified square root. 2/24/2019 11:22 PM 7-2: Similarity

How does this Relate to Geometry? 2/24/2019 11:22 PM 7-2: Similarity

Example 2 Solve for a, b, c, and f where d = 4 and e = 10. Proportions Answers 2/24/2019 11:22 PM 7-2: Similarity

Your Turn 12 is the geometric mean between 8 and what other value? 2/24/2019 11:22 PM 7-2: Similarity

Assignment Worksheet 2/24/2019 11:22 PM 7-2: Similarity