____12. An airplane approches an airport. At a certain time, the plane is 1,020 m

high and its angle of elevation measured from the aiport is 20.5°. How far is

the plane from the aiport?

A. 1,089 m C. 2,913 m

B. 2,728 m D. 3, 000 m

____13. Using the ∆MAT at the right, what is the length of ̅̅̅̅̅?

A. 2.9 cm C. 4.3 cm

B. 3.5 cm D. 7.7 cm

____14. What is the area of ∆ at the right?

A. 15.8 2

B. 33.2 2

C. 66.4 2

D. 132.7 2

____15. You stand 25 m from the foot of a tree and you observe that the angle of

elevation of the top of the tree is 48 degrees. How tall is the tree?

A. 27.8 m C. 18.6 m

B. 22.5 m D. 16.7 m​