advertisement

Trigonometry Practice Problems 1. Find “a” in the following triangles: a = 6.9 a = 3.5 2. The base of the right-angled triangle shown is 5 cm in length, and the angle A is 60°. Calculate the altitude BC. h = 8.66 3. A railway is inclined at an angle of 1° to the horizontal. Find the vertical height climbed when a train travels 1 km up the hill. Vertical height = 17.45 m 4. The foot of a ladder is 1.5 m from a vertical wall. The ladder makes an angle of 68° with the horizontal. How far up the wall does the ladder reach? y = 3.7 m 5. The string of a kite is 120 m long and makes an angle of 70° with the horizontal. What is the height of the kite? y = 112.76 m 6. A ship travels 10 km on a course heading 50º east of north. How far north and how far east has the ship traveled at this point? y = 6.43 km x = 7.66 km