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Mathematics

Right-triangle trigonometry

Relate angles and side lengths with right-triangle trigonometry.

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Where this chapter sits in the course

Lessons

Chapter 18 of 25 · 6 short lessons · 25 min
  1. 1Sides relative to an angle3 min
  2. 2Sine, cosine, and tangent4 min
  3. 3Finding sides with trigonometry4 min
  4. 4Inverse trigonometric ratios4 min
  5. 5Angles of elevation and depression4 min
  6. 6Challenge: Right-triangle trigonometry6 min

What you'll learn

  • Apply sine, cosine, and tangent in right triangles
  • Solve contextual angle and distance problems

Your plan from this chapter

It follows the course from here, at your pace, with reviews before you forget.

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