10) An 18-foot tall palm tree casts a shadow that is 23.4 feet along the ground. Determine the angle of elevation of the sun. 18 ft. 23.4 ft. 11) A pilot is traveling at a height of 5.6 miles above ground level. She looks down at an angle of depression of 6* and spots the runway. How many miles away is the plane from the runway? 5.6 mi. 12) A ship is on the surface of the water, and its radar detects a submarine at a direct distance of 238 m. If the submarine is at a depth of 93 m below the surface of the water, then determine the angle of depression of the submarine. 93 m 238 m 13) A dog, who is 8 yards from the base of a tree, spots a squirrel in the tree at an angle of elevation of 40°. What is the direct-line distance between the dog and the squirrel? (You must first draw your own picture.)