Section 8-1: Geometric Mean When the means of a proportion are the same number, that number is called the geometric mean of the extremes.

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Presentation transcript:

Section 8-1: Geometric Mean When the means of a proportion are the same number, that number is called the geometric mean of the extremes.

Section 8-1: Geometric Mean

Examples: Find the geometric mean between: ◦ 5 and 45 ◦ 12 and 15

Section 8-1: Geometric Mean

Examples: Identify the similar triangles

Section 8-1: Geometric Mean Examples: Find the proportions: ◦ Shorter leg : longer leg ◦ Hypotenuse : shorter leg ◦ Hypotenuse : longer leg

Section 8-1: Geometric Mean Everything you did on the previous page involved geometric means.

Section 8-1: Geometric Mean

Examples: Find x, y, and z.

Section 8-1: Geometric Mean Example:

Section 8-1: Geometric Mean Homework: Page , #9 – 37 odd