If a 20 foot ladder makes a 65 degree angle with the ground, how many feet up a wall will it reach? Round your answer to the nearest tenth.
8.5 ft
10 ft
18.1 ft
42.9 ft
A ship's sonar finds that the angle of depression to a wreck on the bottom of the ocean is 12.5 degrees. If a point on the ocean floor is 60 meters directly below the ship, how many meters is it from that point on the ocean floor to the wreck? Round your answer to the nearest tenth.
277.2 m
270.6 m
61.5 m
13.3 m
Find the angle of elevation of the sun if a building 100 feet tall casts a shadow 150 feet long. Round to the nearest degree.