SOLUTION: How to use law of sines??? Let the angles of a triangle be alpha = 40 degrees , beta = 87 degrees c = 115. Use the law of sines to find the remaining sides. Thanks!

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Question 813430: How to use law of sines???
Let the angles of a triangle be alpha = 40 degrees , beta = 87 degrees c = 115. Use the law of sines to find the remaining sides.
Thanks!
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi

law of sines:

a%2Fsin%28alpha%29%22%22=%22%22b%2Fsin%28beta%29%22%22=%22%22c%2Fsin%28gamma%29

Using the first two expressions:

a%2Fsin%28alpha%29%22%22=%22%22b%2Fsin%28beta%29

x%2Fsin%28%2240%B0%22%29%22%22=%22%22115%2Fsin%28%2287%B0%22%29

Cross-multiply:

115·sin(40°) = x·sin(87°)

  x= 115·sin(40°)/sin(87°)

Repeat process for third side