SOLUTION: A hiker leaves her tent and walks due east for 4.12km, then walks a further 3.31km on a bearing of 20 degrees. If she wishes to return directly to her tent, how far must she walk a

Algebra ->  Trigonometry-basics -> SOLUTION: A hiker leaves her tent and walks due east for 4.12km, then walks a further 3.31km on a bearing of 20 degrees. If she wishes to return directly to her tent, how far must she walk a      Log On


   



Question 1065171: A hiker leaves her tent and walks due east for 4.12km, then walks a further 3.31km on a bearing of 20 degrees. If she wishes to return directly to her tent, how far must she walk and what bearing should she take?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
A hiker leaves her tent and walks due east for 4.12km, then walks a further 3.31km on a bearing of 20 degrees. If she wishes to return directly to her tent, how far must she walk and what bearing should she take?
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Use the Cosine Law to find the 3rd side.
2 sides are given, and the included angle is 110 degrees.