1. HW: Pg. 431-432 1-9, 15-16 Do Now: 1)Take out your pencil and notebook Objectives: You will be able to apply the concepts of trigonometry to solve real world problems. Agenda: 1.Do Now 2.Solving real world problems using trig. (4.8) Thursday, January 22, 2015

2. Slide 4.8 - 2 Example Using Angle of Elevation The angle of elevation from the buoy to the top of the Barnegat Bay lighthouse 130 feet above the surface of the water is 5 º. Find the distance x from the base of the lighthouse to the buoy. 130 x 5º5º

3. Slide 4.8 - 3 Example Using Angle of Elevation The angle of elevation from the buoy to the top of the Barnegat Bay lighthouse 130 feet above the surface of the water is 5 º. Find the distance x from the base of the lighthouse to the buoy. 130 x 5º5º

4. Slide 4.8 - 4 Example Making Indirect Measurements From the top of a 100 ft. tall Altget Hall a man observes a car moving toward the building. If the angel of depression of the car changes from 22 to 46 during the period of observation, how far does the car travel?

5. Finding Height Above Ground A large, helium filled penguin is moored at the beginning of a parade route awaiting the start of the parade. Two cables attached to the underside of the penguin make angles of 48 and 40 degrees with the ground and are in the same plane as a perpendicular line from the penguin to the ground. If the cables are attached to the ground 10ft. From each other, how high above the ground is the penguin?