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Learning Goal
Part of: Define trigonometric ratios and solve problems involving right triangles — 1 of 3 cluster items
Understand trigonometric ratios
HSG.SRT.C.6
**HSG.SRT.C.6**: Understand that by similarity, side ratios in right triangles are properties of the angles in the triangle, leading to definitions of trigonometric ratios for acute angles.
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HSG.SRT.C.6: Understand that by similarity, side ratios in right triangles are properties of the angles in the triangle, leading to definitions of trigonometric ratios for acute angles.
What you'll learn
- Explain how similarity of right triangles leads to consistent side ratios for a given acute angle
- Define sine, cosine, and tangent ratios for acute angles in right triangles
- Calculate trigonometric ratios given the sides of a right triangle
- Understand that trigonometric ratios depend only on the angle, not on the size of the triangle
- Use the definitions to find side lengths or angle measures in right triangles
- Recognize the relationship between trigonometric ratios and the concept of similarity
Slides
Interactive presentations perfect for visual learners • 2 slide decks
Slide Video
Watch narrated slides play like a video lesson • Narrated slide playback
Exercises
Practice problems to build fluency and understanding • 1 exercises