PPT-Day 3: Angles of Elevation and

Depression 114 and 115 EQ How do we draw angles of elevation and angles of depression Agenda Warm UpCheck Homework Notes on Angles of Elevation and Depression Practice Drawings. Angles are ACUTE angles Angles equal to 90 are RIGHT angles Angle are OBTUSE angles Angles equal to 180 Angles more than 180 are REFLEX angles ANGLES RULES Angles about a point add to 360 Angle of Elevation: the angle formed by a horizontal line and a line of sight to a point above the line. Angle of Depression: the angle formed by a horizontal line and a line of sight to a point below the line. 9.10.15. Do Now. Define the following:. Acute angle. Straight angle. Right angle. Obtuse angle. Ray. Line. Line segment. How do you prove you are right?. Proving You . A. re Right. We write an explanation of our thinking or thought process. A match made on earth. USGS, . SouthAtlantic. Water . Science . Center. NC/SC Associate National Map Liaison. Silvia Terziotti. Elevation and Hydrography. a. re inherently linked. One forms the other. Angle of Elevation. : the angle from the line of sight and upwards.. . Angle of Elevation. Angle of Depression. : the angle from the line of sight and downwards.. . . Angle of Depression. Angles of Elevation and Depression. Protractor: . What do you notice? . Task One: . Look at the protractor. Write down everything that you notice about the protractor. Try and come up with at least . 10 facts. Think about . number patterns . into the folder on the projector podium. Have Worksheet and Notes out on your desk. Work on p. 510 #1 – 7. Bellringer. SPI 3108.4.15 Determine and use the appropriate trigonometric ratio for a right triangle to solve a contextual problem.. The vertical distance from rotary table to Point B is called a true vertical depth. The inclination angle ‘I’ is the angle between vertical and the wellbore. . The direction angle ‘A’ is specified as the azimuth between the geographic north and the projection of a wellbore on a horizontal plane.. -Quiz Friday over Pythagorean Theorem/Special Right Triangles/Trig Ratios.. Theodolite/diopter . Inclinometer / Clinometer. Sextant – used to measure the angle between two known objects, usually using a celestial object such as the sun or Polaris (north star). The major use is to identify lines of latitude and sighting the height of a landmark to determine distance off from the landmark. TYPE I ELEVATION TYPE II SECTION A-A SECTION B-B ELEVATION TYPE III-A SECTION C-C ELEVATION TYPE III-B NOTE STANDARD NO. APPROVED APPROVAL APPROVAL SHA REVISIONS FEDERAL REVISED REVISED REVISED REVISE  . Section 2.4. Solving Right Triangles. Objective: . SWBAT . s. olve . problems involving angles of elevation and angles of depression.. An . angle of elevation. . is the angle formed by a horizontal line and a line of sight to a point . Warm Up. 1.. . Identify the pairs of alternate . interior angles. . 2.. Use your calculator to find tan 30° to the nearest hundredth. . 3.. Solve . Round to the nearest hundredth.. Solve problems involving angles of elevation and angles of depression.. You will. angle of elevation. angle of depression. Vocabulary. An . angle of elevation. . is the angle formed by a horizontal line and a line of sight to a point above the line.