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MPM 2D/G Lesson 8.3 Applications of Trigonometry Ex. 1 Which law should you use? a) b) 2 3 c) 5 6 5 29° 6 x 18° x 43° 9 x Ex. 2 From an observation tower, the angle of elevation of a weather balloon is 68°. The balloon is sighted by another person from 35. 0 km away, on the opposite side of the balloon, where the angle of elevation is 47°. How far is it from the balloon to the tower? Ex. 3 A squash player hits the ball 2.3 m to the side wall. The ball rebounds at an angle of 100° and travels 3.1 m to the front wall. Assuming she doesn’t move, how far is the ball from the player when it hits the front wall? Ex. 4 A canoeist paddles 3.4 km in a S13°W direction and then 8 km in a N52°W direction. What distance will she have to travel to return to her original position?