Sections Developing Trigonometric Ratios: Sine, Cosine, and Tangent Determining Side Lengths Using Trigonometric Ratios Determining Angle Measures Using Trigonometric Ratios Solving Real-World Problems: Angles of Elevation and Depression Kid2Kid Video Developing Trigonometric Ratios: Sine, Cosine, and Tangent Determining Side Lengths Using Trigonometric Ratios Determining Angle Measures Using Trigonometric Ratios Solving Real-World Problems: Angles of Elevation and Depression Kid2Kid Video Print Share Applying Trigonometric Ratios Copy and paste the link code above.