_1. Which of these statements is NOT true? A. An angle of elevation is an angle from a horizontal line. B. The line of sight is an imaginary line drawn from the eye of an observer to the point in the object. c. The angle of depression is the angle between the horizontal line of sight and the line of sight down to an object. D. If the horizontal line in the angle of depression diagram is parallel to the ground level, then the angle of depression is equal to the angle of elevation. _2. What is the angle of elevation in the figure? A. ZA В. 2В С. 2C 15° 2 miles D. 2X 15° B _3. If two buildings are 30 ft apart and the angle of elevation from the top of the first to the top of the second is 190, what is the angle of depression from the top of the second to the top of the first? В. 490 С. 610 D. 710 A. 190 For numbers 4 – 5, refer to the figure on the right, 4. What is the line of sight? 20m А. BD В. ВХ С. ВА D. AX _5. What is the angle of elevation? В. В C. LC A. ZA D. ZX 40° 8 m
_1. Which of these statements is NOT true? A. An angle of elevation is an angle from a horizontal line. B. The line of sight is an imaginary line drawn from the eye of an observer to the point in the object. c. The angle of depression is the angle between the horizontal line of sight and the line of sight down to an object. D. If the horizontal line in the angle of depression diagram is parallel to the ground level, then the angle of depression is equal to the angle of elevation. _2. What is the angle of elevation in the figure? A. ZA В. 2В С. 2C 15° 2 miles D. 2X 15° B _3. If two buildings are 30 ft apart and the angle of elevation from the top of the first to the top of the second is 190, what is the angle of depression from the top of the second to the top of the first? В. 490 С. 610 D. 710 A. 190 For numbers 4 – 5, refer to the figure on the right, 4. What is the line of sight? 20m А. BD В. ВХ С. ВА D. AX _5. What is the angle of elevation? В. В C. LC A. ZA D. ZX 40° 8 m
Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter6: Circles
Section6.4: Some Constructions And Inequalities For The Circle
Problem 12E
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