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Couple geometry proofs. Thank you so much

 

1.

 

 

2.

 

 

3.

 May 30, 2018
 #1
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First one:

sin = opposite/ hypotenuse

 

so  sin c  =  h/a         or    a sin c = h

commutative property (they can be multiplied in any order)

 May 30, 2018
edited by ElectricPavlov  May 30, 2018

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