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7 1 geometric mean
 

7 1 geometric mean

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    7 1 geometric mean 7 1 geometric mean Presentation Transcript

    • GEOMETRIC MEAN A = B SECTION 7-1 Jim Smith JCHS
    • The Geometric Mean Between 2 Numbers ( A and B ), Is The Number That When Substituted For X Will Make This Proportion True A X = X B
    • Find the geometric mean between 4 and 9 4 X = X 9 X² = 36 X² = 36 X = 6
    • Find the geometric mean between 3 and 15 3 X = X 15 X² = 45 X² = 45 X = 3 5 X = 6.7
    • 8 is the geometric mean between 2 and what number 2 8 = 8 X 2X = 64 X = 32
    • The Altitude Drawn To The Hypotenuse In A Right Triangle Divides The Hypotenuse Into 2 Parts. The Altitude Is The Geometric Mean Between The 2 Parts. Alt A Alt = Alt B A B
    • 8 X = X 5 X² = 40 X = 40 X = 2 10 X = 6.3 Find X 8 5 X
    • Each Leg Is The Geometric Mean Between The Part Of The Hypotenuse Adjacent To The Leg And The Whole Hypotenuse W X Y W = W Y + Z Z X X Y + Z = Y Z
    • 8 T = T 8+5 T² = 8 ( 13 ) T² = 104 T = 104 T = 2 26 T = 10.2 Find T 8 5 R T
    • 5 R = R 5+8 R² = 5 ( 5+8 ) R² = 5 (13 ) R² = 65 R = 65 R = 8.1 Find R 8 5 R T