# CCSS.8.G.A.5

angle relationships, parallel lines, triangles; justify, explain, solve.

System: US Common Core Math
Route: /math/standards/us-ccss/curratom-us-ccss-8-g-a-5
Skills: 2

## Skills and Examples

- [Parallel Perpendicular](/math/skills/geom/parallel-perpendicular) — Geometry Shape Attributes and Classification
- [Triangles Classify](/math/skills/geom/triangles-classify) — Geometry Shape Attributes and Classification