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Angles of Elevation and Depression Objective: To select an appropriate representation in order to solve problems To apply trigonometric ratios Angle of Elevation - An angle of elevation is the angle formed by a horizontal line and the line of sight to an object above the horizontal line. Angle of Depression – An angle of depression is the angle formed by a horizontal line and the line of sight to an object below the horizontal line. Page 447 – 448 Nos. 2 – 22 (Even Nos.)