Applications of the sine law and cosine law

Lessons

• 1.
  Neo left home and drove to a grocery store on a bearing of N15°W. Then he drove to a mall located 11km away from the grocery store. If the mall is 13 km away on a bearing of N60°W from his home, what is the distance between Neo's home and the grocery store?

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• 2.
  Owen sees a firework on a bearing of 290°. Meanwhile 6km due west of Owen, Macy sees the same firework on a bearing of 065°.
  a)

  How far is each person away from the firework?
  
  
  b)

  If Macy's parents are enjoying the firework 1.5 km due north of Macy, how far are Macy's parents from the firework?
  
  

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