Unit 4 Right Triangle Trigonometry

This unit leverages students' existing knowledge of right triangles, including their familiarity with the Pythagorean Theorem and similar triangles, to introduce trigonometric ratios. It begins by solidifying the concept of similar right triangles and then guides students to generate and use data for side length ratios before formally naming cosine, sine, and tangent. Finally, students apply these trigonometric concepts to solve real-world problems, focusing on reasonableness and precision, and explore the approximation of pi.