Trigonometry : Exercise (11.3) - Problem 15

A ship leaves harbour on a course N 72° E and after traveling for 50 metres, changes course to 108°. After a further 106 metres, find 

(a) the distance of the ship from the harbour, 

(b) its bearing from the harbour.

Exercise (11.3)-Problem 17

Two runners start from the same point at 12:00 noon, one of them heading north at 6 mph and the other heading 68° east of north at 8 mph. What is the distance between them at 3:00 that afternoon? 

Exercise(11.3)-Problem21

A ship is 5 km from a boat in a direction N 37o W and a lighthouse is 12 km from a boat in a direction S 53° W. Calculate the distance and direction of a ship from the lighthouse.

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