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Coursework Notes - Shape & Space

 

Sine Ratio

 

The Sine Ratio

 

the sine ratio

 

 

Method for problems:

 

  1. write out the ratio putting in the values for the given sides and/or angle.

    2.  

  2. put a '1' under the sine/cos/tan

    3.  

  3. cross multiply(top left by bottom right = top right by bottom left)

    4.  

  4. make the 'unknown' the subject of the equation

 

 

 

Example #1

 

sine eg#1

 

 

sine eg#1

 

 

 

Example #2

 

sine eg#2

 

 

sine #2

 

 

 

Example #3

 

sine eg#3

 

 

the sine ratio - problem#03

 

 

 

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