# CCSS.4.G.A.2

shape classification, angles, parallel perpendicular; classify, identify, justify.

System: US Common Core Math
Route: /math/standards/us-ccss/curratom-us-ccss-4-g-a-2
Skills: 4

## Skills and Examples

- [Angle Types](/math/skills/geom/angle-types) — Geometry Shape Attributes and Classification
- [Parallel Perpendicular](/math/skills/geom/parallel-perpendicular) — Geometry Shape Attributes and Classification
- [Triangles Classify](/math/skills/geom/triangles-classify) — Geometry Shape Attributes and Classification
- [Angles Identify](/math/skills/measure/angles-identify) — Geometric Measurement