1. A school flagpole casts a 16-foot shadow on the lawn. A teacher stood at the shadow's edge and measured the angle of elevation to the top of the pole at 42°. How tall is the pole? A. 14.4 ft B. 12 ft C. 5.6 ft D. 17.8 ft Hint 2. Solve . Round measures of sides to the nearest tenth and measures of angles to the nearest degree. A. E = 64°, d = 12.9, e = 11.4 B. E = 64°, d = 14.4, e = 12.9 C. E = 64°, d = 11.7 e = 14.4 D. E = 64°, d = 12.9, e = 14.4 Hint 3. Find one positive angle and one negative angle that are coterminal with 310°. A. -120°, 400° B. 50°, -670° C. -50°, 670° D. 100°, -670° Hint 4. Find the exact value of sin , cos , and tan if the terminal side of in standard position contains the point (5, 12). A. sin , cos , tan B. sin , cos , tan C. sin , cos , tan D. sin , cos , tan Hint 5. Solve ABC. Round measures of the sides to the nearest tenth. A. B = 38.1°, C = 85.9°, c = 9.8 B. B = 38.1°, C = 85.9°, c = 1.1 C. B = 38.1°, C = 85.9°, c = 9.9 D. B = 38.1°, C = 85.9°, c = 8.3 Hint 6. Solve ABC. Round the measure of angles to the nearest tenth. A. A = 76.7°, B = 68.2°, C = 35.1° B. A = 35.1°, B = 76.7°, C = 68.2° C. A = 68.2°, B = 76.7°, C = 35.1° D. A = 76.7°, B = 86.2°, C = 35.1° Hint 7. Find the exact value of sin 510°. A. B. C. D. Hint 8. Determine the exact value of cos . A. B. C. D. Hint 9. What is the degree measure of the angle through which the hour hand on a clock rotates from 4:00 P.M. to 8:00 P.M.? A. –120° B. 90° C. –90° D. 120° Hint 10. For which trigonometric functions is an angle that measures 180° undefined? A. csc and sec B. tan and cot C. csc and cot D. sec and tan Hint 11. In A = 32°, a =8, and b = 7. Find C. A. 110.7° B. 30.4° C. 120.4° D. 20.7° Hint 12. Suppose a triangle has three sides which measure 10, 13, and 17. What is the measure of the largest angle? A. 91.3° B. 88.7° C. 94.4° D. 85.6° Hint 13. What is the value of Arccos in radians? A. 0.59 radians B. 0.41 radians C. 1.17 radians D. 33.6 radians Hint 14. Which of the following is not necessarily true concerning the Arcsin function? A. [Sin-1 Sin](x) = [Sin Sin-1](x) = x B. Its range is the set of angle measures from C. Its domain is the set of real numbers from –1 to 1. D. Sin x = y if and only if Sin-1 x = y Hint