- Points- Named using: a single capital letter
Ex: Name the point. M
- Planes- Named using: a single capital letter or three non-collinear points on the plane
Ex: Name the plane in two different ways. Plane ℓ, Plane ABC
- Lines- Named using two points on the line with this symbol: ↔
*can also be named using a single lowercase script letter
- Segments- Named using two endpoints with this symbol: —
- Rays- Named using an endpoint and another point on the ray with this symbol: →
Examples: Name the line, segment, and ray from the figures below.
- Line: ↔JK (or ↔KJ, or ↔JP, etc.)
- Segment: ST (or TS)
- Ray: LM (starting at L, going through M)
What if the figure has more than 2 points?
- Line: ↔AE (or ↔EA, ↔AB, ↔BA, etc.)
- Segment: WZ (or ZW)
- Ray: MO (starting at M, going through O)
- Angles- Named 3 ways using this symbol: ∠
1. ∠DEC
2. ∠CED
3. ∠E
Parent Tip: Review the logic above to help your child master the concept of basic geometric terms worksheet.
