SOLUTION: A right triangle has the hypotenuse of c=12 cm (centimeters) and an angle a=30degrees side a, opposite angle A, equals?

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Question 387561: A right triangle has the hypotenuse of c=12 cm (centimeters) and an angle a=30degrees side a, opposite angle A, equals?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi, 

Right Triangle with hypotenuse = 12cm        

Let x represent length  of side opposite the 30° angle

  sin 30° = opposite/hypotenuse 

  sin 30°  = 1/2

   +1%2F2+=+x%2F12cm cross multiply to solve for x

      2x = 12cm

       x = 6cm



 Sides opposite 30°----- 60°-----90° triangle do have a ratio relationship:

                1 :sqrt%283%29:2

 That is: knowing this, 6cm would have been a quick response, for ex.