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

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) (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.

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