Curriculum placement
Grade 7. This describes the skill, not a learner estimate.
Supplementary, vertical, and adjacent angles
Solve unknown angles using supplementary vertical and adjacent relationships
Problem types
- Find an unknown angle
- Write and solve an angle equation
- Which angle statement must hold
Builds on
Leads to
- Angle sums and exterior angles
- Theorems about circles
- Proofs about lines and angles · Extend the idea
Angle pair facts are used as reasons in proofs about lines cut by a transversal.
Related skills
- Solving absolute-value equations · Shared foundations
- Linear equations with variables on both sides · Shared foundations
- Solving inequalities · Shared foundations
- When given measures make a triangle · Shared foundations
Open the interactive map to explore lessons and skill connections.