Angles of Elevation and Depression - Morgan Park High School

[Pages:19]Names for Homework Assignments.

4th 1.Taylor 2 Wheat 3 Harrell 4 Crum 5 Scott 6 Holland 7 Lawson 12 Oneil 13 Jordan 14 Oatis 11 Burnett 16 Spikener

6th Woolfolk Gregory King Shabazz Klyce R. Harris Corker Burns Nelson C.Johnson Stokes G. Brown

7th Free Alcantar Simpson Goodrum S. Harris Walton Tate Eiland Black Pierce Robinson Anderson

Bell Ringer: 3 minutes after the bell

1. Identify the pairs of alternate interior angles.

2 and 7; 3 and 6

2. Use your calculator to find tan 30? to the

nearest hundredth. 0.58

3. Solve

. Round to the nearest

hundredth.

1816.36

Geometry HR Date: 4/22/2013 Question: How do we measure the immeasurable?

Obj: SWBAT solve problems involving angles of elevation and depression.

Bell Ringer: See overhead HW Requests: Kuta Worksheet,, Parking Lot: Red WB 103, 104 pg 101, 102

Homework: Read Section 8.5 pg 577 #1-7, 12-16 Assign problems for putting on board ? Announcements: ? Quiz Friday

Geometry IB 4/22/13 Obj: SWBAT solve problems involving angles of elevation and depression.

Question: How do we measure the immeasurable?

Agenda ? Bell Ringer: See overhead ? Homework Requests: Red WB pg 103, Kuta

Worksheet ? Parking lot: Red WB #104, 101, Homework:Read Section 8.5 pg 577 #1-7, 12-16 Assign problems

? Announcements: ? Quiz Fri.

11.3 Angles of Elevation and Depression

Solve problems involving angles of elevation and angles of depression.

Line of sight

Angle of Elevation ?angle between the line of sight and the horizontal when looking upward. Find horizontal line (eye level) and then angle (raise arm). Make a drawing.

Line of sight

Angle of Depression ?angle between the horizontal and the line of sight when an observer looks downward.

Find horizontal line (eye level) and then angle (lower arm). Make a drawing.

An angle of elevation is the angle formed by a horizontal line and a line of sight to a point above the line. In the diagram, 1 is the angle of elevation from the tower T to the plane P.

An angle of depression is the angle formed by a horizontal line and a line of sight to a point below the line. 2 is the angle of depression from the plane to the tower.

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