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Sunday, August 28, 2016

Example: What is the sine of 35°?

Using this triangle (lengths are only to one decimal place):

sin(35°)= Opposite / Hypotenuse
 = 2.8 / 4.9
 = 0.57...
  
cos(35°)= Adjacent / Hypotenuse
 = 4.0 / 4.9
 = 0.82...
  
tan(35°)= Opposite / Adjacent
 = 2.8 / 4.0
 = 0.70...


Find the length of side b if side c is 38 m and angle A is 48°

 

1. Which ratio corresponds to cos35?

  
 
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