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1. An airplane is flying at a height of 6 kilometers above the ground. The distance along the ground from the airplane to the airport is 10 kilometers. What is the angle of depression from the airplane to the airport?
a. 31.96º
b. 32.90º
c. 30.96º
d. 32.96º
2. A building is 15 m high. At a certain distance from a building, an observer determines that the angle of elevation to the top of it is 54º. How far is the observer from the base of the tower?
a. 10.90 meters
b. 9.90 meters
c. 11.90 meters
d. 12. 90 meters
3. Sophia measures the angle of elevation between the ground and a building 125 feet away to be 35º. How tall is the building?
a. 87.35 feet
b. 87.53 feet
c. 78.35 feet
d. 78.53 feet
4. The angle of elevation of the top of the building with a distance of 75 m from its foot on a horizontal plane is found to be 50 degrees. Find the height of the building.
a. A. 98.39 meters
b. B. 89.93 meters
c. 98.93 meters
d. 89.39 meters
5. A ladder leaning against a vertical wall makes an angle of 40° with the ground. The foot of the ladder is 5 meters from the wall. Find the length of the ladder.
A. 6.35 meters
B. 6.53 meters
C. 16.35 meters
D. 16.53 meters
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Answer:
1.c
2.b
3.d
4.a
5.d
Step-by-step explanation:
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