shape & space : the 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. put a '1' under the sine/cos/tan
  3. cross multiply(top left by bottom right = top right by bottom left)
  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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