Geometry 7.6 Elevation and Depression 116.notebook January 16, 2015 Turn in your Activity #40 (Hw from yesterday) to the tray! Jan 1510:22 AM ANNOUNCEMENTS Awesome job on Trig so far. If you need help, you need to make it to my tutoring times in the morning or to lunch tutoring in room 742 Chapter 7 Quizzes (Josh, Mel, Zach M, Kylie M., Paul M, Becca, Isaiah, Lizzie, Andrew, Carlee, Jala, Kari G. Jan 167:42 AM 1 Geometry 7.6 Elevation and Depression 116.notebook January 16, 2015 Find the measure of angle C. Find the cos A, sin A, and tan A. Find the missing variables. 47 Jan 167:43 AM 1st Hour Be seated and wait for the sub to pass out your worksheet. FIRST complete the worksheet, front and back (by yourself). You do not have a "table of tangents, cosines or sines". Use a calculator and the answers on the worksheet are approximated and use a PENCIL to color in the answers. When you are done, please turn in the worksheet and copy the following notes in your notebook. Title "7.6 Angle of Elevation/Depression". Angle of elevation "looking up at an object" Angle of depression " looking down at an object" Drawing the situations Ex: A skateboard ramp has an angle of elevation of 26 degrees and the ramp reaches 14 feet above the ground. Ex: You are skiing down a mountain with an altitude of 1200 meters. The angle of depression is 21 degrees. How far do you ski down the mountain? Jan 157:34 AM 2 Geometry 7.6 Elevation and Depression 116.notebook January 16, 2015 Ex: A skateboard ramp has an angle of elevation of 26 degrees and the ramp reaches 14 feet above the ground. How long is the ramp p x ram 14 ft 26 ground Jan 167:38 AM Ex: You are skiing down a mountain with an altitude of 1200 meters. The angle of depression is 21 degrees. How far do you ski down the mountain? 21 1200 m 1200 m Jan 167:39 AM 3 Geometry 7.6 Elevation and Depression 116.notebook January 16, 2015 The angle of elevation of the top of a tree is 30 degrees from a point 28 ft away from the foot of the tree. Find the height of the tree rounded to the nearest feet. An airplane takes off 200 yards in front of a 60 ft tall building. At what angle of elevation must the plane take off in order to avoid crashing into the building? A 14 foot ladder is used to scale a 13 foot wall. At what angle of elevation must the ladder be situated in order to reach the top of the wall. Jan 167:49 AM GROUP WORK: Drawing Situations Jan 168:05 AM 4 Geometry 7.6 Elevation and Depression 116.notebook January 16, 2015 What is the perimeter of this triangle? Jan 088:33 PM Challenge: Find the tangent of 60 degrees. (Use the special right triangle rules.) we have to use what we already know!!! Jan 97:27 AM 5 Geometry 7.6 Elevation and Depression 116.notebook January 16, 2015 Homework Extra Practice WKST: #17 Geo War: How would you solve them, do not solve them! Jan 168:03 AM 6
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