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Applied 20S January 23, 2009

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Review of Measurement and Trigonometry.

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Applied 20S January 23, 2009

  1. 1. Exam Rehearsal AKA The End by flickr user damaradeaella
  2. 2. (3) If the dimensions of a photograph are tripled, by what factor does its area increase?
  3. 3. (4) On a map, a river is 92 cm long. The map has a scale of 1 : 50 000. What is the actual length of the river in kilometres?
  4. 4. (5) Participants in a race must kayak for 23 km, ride a bicycle for 42 miles and hike for 8750 metres. What is the total race distance in miles? kilometres? (1 mile = 1.6 km)
  5. 5. TRIGONOMETRY
  6. 6. From the top of a 100 m fire tower, a fire ranger observes two fires, one at an angle of depression of 5° and the other at an angle of depression of 2°. Assuming that the fires and the tower are in a straight line, determine the distance between the fires for the following: (a) when the fires are on the same side of the tower. (b) when the fires are on opposite sides of the tower.
  7. 7. From the top of a 100 m fire tower, a fire ranger observes two fires, one at an angle of depression of 5° and the other at an angle of depression of 2°. Assuming that the fires and the tower are in a straight line, determine the distance between the fires for the following: (a) when the fires are on the same side of the tower. (b) when the fires are on opposite sides of the tower.

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