Trigonometry

Skills covered

• G6 · Aerodynamics & NavigationTrigonometryStar Tracker

Lessons

1. 7.1Right-Triangle TrigonometryChoose sine, cosine, or tangent and solve right triangles without ratio mix-ups.28 min 
2. 7.2Unit Circle, Degrees & RadiansRead exact unit-circle values, track signs by quadrant, and convert angle units.28 min 
3. 7.3Trig Graphs & Oblique TrianglesRead amplitude and period, then use the laws of sines and cosines when triangles are not right.28 min 

Challenge sets

Optional, hardest-level questions at the end of each lesson. This is where a 36 is won.

• Lesson 7.1 · 4 questionsRight-Triangle Trigonometry
• Lesson 7.2 · 4 questionsUnit Circle, Degrees & Radians
• Lesson 7.3 · 4 questionsTrig Graphs & Oblique Triangles