1. Solve the problem.

The angle of elevation from a point on the ground to the top of a tower is 18°. The base of the tower is 100 feet from the point on the ground. Find the height of the tower. Round to the nearest tenth of a foot.

1. Solve the problem.

A person is looking from a car to the top of a building. The angle of elevation to the top of the building from the car is 32°. The building is 200 feet away. How tall is the building? Round to the nearest foot.

1. Solve the problem.

A person is watching a boat from the top of a lighthouse. The angle of depression from the person to the boat is 28° . The lighthouse is 200 feet tall. How far away is the boat? Round to the nearest foot.

1. Find the missing parts of the triangle. Round to the nearest tenth when necessary or to the nearest minute as appropriate.

C = 109.3°

a = 5.6 km

b = 10.7 km

1. Find the missing parts of the triangle. Round to the nearest tenth when necessary or to the nearest minute as appropriate.

a = 8.1 in.
b = 13.3 in.
c = 16.2 in.

1. Find the indicated angle or side. Give an exact answer.

Sample Solution