Which of the following is TRUE about the angle of elevation?
A. It is the angle formed by the line sight and the horizontal for an object located above the horizontal.

B. It is the angle formed by the line sight and the horizontal for an object located below the horizontal.

C. It is the angle formed by the line sight and the vertical for an object located above the vertical.

D. It is the angle formed by the line sight and the horizontal for an object located below the horizontal.

8. What does the situation "A who is in the 2nd floor of their house watches his dog lying in the ground" refer to?
A. angle of depression
B. angle of elevation
C. angle of inclination
D. all of these

9. A hiker is 400 meter away from the base of the radio tower. The angle of elevation to the top of the tower is 46°. How high is the tower?
A. 400.4 meters
B.412.2 meters
C. 412.4 meters
D. 414.2 meters

10. What is the reverse mnemonics of SOHCAHTOA?
A. SHOCHACAO
B. SHACHOCAO
C. CHASHOCAO
D. CHOSHACAO​