8 1 notes
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Opener:Please complete the following on your *NEW* opener sheet!!! Please also leave your homework on your desk for me to check in.
The Geometric Mean between 3 and 6 is:
x2= 18x = 3√2
Using the model above, find the Geometric Mean of each of the following pairs of numbers:
1.) 3 and 3
2.) 4 and 25
3.) 5 and 30
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8.1 Right Triangle Similarity
What could you conclude about the three triangles formed when an altitude was drawn to the hypotenuse of a right triangle?
A B
C
A
C
D
A
BD
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We used the idea of similar triangles to find the answers for # 5. Today we're going to use Geometric Mean as a shortcut for this!!
A B
C
D
*Middle Altitude (Altitude in 2 smaller triangles)
*Outside Altitudes (Altitudes in big triangle & 1 small triangle)
5A.) 5B.) 5C.)
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1. Solve for the variables.
Geometric Mean Group Practice:
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2. Solve for the variables.
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3. Solve for the variables.
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4. Solve for the variables.
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5. Solve for the variables.
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6. Solve for the variables.
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Mastermind!!!!