Chapter 5 Introduction to Trigonometry: 5.2 Congruent & Similar Triangles.
Introduction to Trigonometry
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Finding sides from angles. Introduction to Trigonometry. Trigonometry is…. A branch of geometry used first by the Egyptians and Babylonians (Iraq) Used extensively is astronomy and building Based on ratios between angles in RIGHT Triangles. Ratio Name sine cosine tangent cotangent - PowerPoint PPT Presentation
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