1. An angle of elevation is from a horizontal up. An angle of depression is from a horizontal down. Angle of elevation Angle of depression What do you know about the angles of depression and elevation and what is their angle relationship? Pre-Cal Chapter 5 Section 4 Angles of Depression and Elevation

2. G R J g r 12 50° Find g and r

3. 20.75° 1200’ r x Find x and r

4. A regular hexagon is inscribed in a circle with a diameter of 26.6 cm. What is the length of the apothem of the hexagon.

5. An observer in the top of a lighthouse determines that the angle of depression to two sailboats directly in line with the lighthouse are 3.5° and 5.75°. If the observer is 125 feet above sea level, find the distance between the boats. 125’ Boat #1 Boat #2 3.5° 5.75°