Key Quiz 1.5
Key Quiz 1.5
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 1 Which of the following correctly completes the sentence? “A right triangle can be solved if you know the measure of: I. …one side.” II. …two sides.” III. … one side and one other angle.” A) I only. B) II only. C) III only. D) II and III. 2 The use of which of the following formula(s) would be sufficient to solve the triangle shown: (14.0K) A) Sine law alone. B) Cosine law alone. C) Sine law and cosine law used in combination. D) Pythagorean Theorem and trigonometric ratios. 3 Which formula(s) would be needed to solve the triangle shown: (10.0K) A) Cosine law alone. B) Sine law and cosine law used in combination. C) Pythagorean Theorem and trigonometric ratios. D) Cannot be solved without more information being supplied. 4 A balloonist is tethered 50 m above the ground between two trees as shown (20.0K) What is the distance between the trees to the nearest metre? A) 71 m B) 127 m C) 209 m D) 238 m 5 A surveyor finds the angles between three mountains to be 52°, 58°, and 70°. If the two mountains which are furthest apart are 24 km apart, find the other distances between the mountains to the nearest tenth of a kilometre. A) 26.6 km and 28.6 km B) 20.1 km and 21.7 km C) 22.3 km and 26.6 km D) 25.9 km and 28.6 km