Sine & Cosine Rules Worksheets
Free printable sine & cosine rules worksheets with step-by-step answer keys. Every worksheet is uniquely generated so students never see the same problems twice. Topics covered range from identify which rule applies to a given scenario at the easy level through to cosine rule (sss) — find an angle at the advanced level.
CCSS.HSG.SRTLK20.11
Difficulty Levels
Beginner
- Concepts
- Identify which rule applies to a given scenario
- Number Range
- AAS, SAS, SSS descriptions
- Steps
- 1–2 steps
- Example
- Given 2 angles and 1 side → which rule?
Easy
- Concepts
- Sine rule (AAS) with clean angles
- Number Range
- angles 30/45/60°
- Steps
- 3–4 steps
- Example
- a=10, A=30°, B=45° → find b
Medium
- Concepts
- Cosine rule (SAS) — find third side
- Number Range
- small integer sides
- Steps
- 3–4 steps
- Example
- a=5, b=7, C=60° → find c
Hard
- Concepts
- Cosine rule (SSS) — find an angle
- Number Range
- integer sides forming valid triangles
- Steps
- 3–4 steps
- Example
- a=7, b=8, c=9 → find angle C
Grade Availability
Sine & Cosine Rules worksheets are available for Grade 11. Problems are automatically adjusted to match grade-level expectations in number range, complexity, and notation.
Try a Sample Problem
Try it right now
Practice online → Interactive sine & cosine rules problems with instant feedback.