For numbers 4-6. A 7-meter ladder rests against the side of a house. The angle of elevation of the ladder is 150
(Use: sin 150 - 0.26, cos 150 - 0.97; tan 15º = 0.27)
4. The side that represents the length of the ladder is
A. hypotenuse B. opposite C. adjacent D. diagonal
5. Which equation represents the distance of the foot of the ladder from the wall?
A. sin 15° = 7/x B. cos 15° = x/7 C. cos 15° = 7/x D. tan 15° = x/7
6. How far is the foot of the ladder from the wall?
A. 1.9 m B. 7.2 m C. 6.8 m D. 27 m
7. From the top of a vertical cliff 40m high, the angle of depression of an object that is level with the base of the cliff is 34°. How far is the object from the base of the cliff?
A. 59.7 m B. 70.2 m C. 56.1 m D. 71.5 m
8. A 14 foot ladder is used to scale a 13 foot wall. At what angle of elevation must the ladder be situated in order to reach the top of the wall? (Nearest degree)
