# Singapore Secondary 1 Measurement and Geometry sec1 angles polygons

angles, polygons, symmetry; identify, calculate, justify.

System: Singapore MOE Primary Mathematics
Route: /math/standards/singapore-primary/curratom-singapore-moe-sec1-g3-measurement-and-geometry-angles-and-polygons-sec1-g3-angle-properties-polygons-symmetry-basic
Skills: 3

## Skills and Examples

- [Polygons Classify](/math/skills/geom/polygons-classify) — Geometry Shape Attributes and Classification
- [Symmetry Identify Line](/math/skills/geom/symmetry-identify-line) — Spatial Composition, Transformations, Symmetry, and Coordinates
- [Angles Identify](/math/skills/measure/angles-identify) — Geometric Measurement