Grade 3 Geometry worksheet on lines, segments, rays, and angles, with terms and visual examples for matching.

- Line → Double-headed arrow (purple)
- Line segment → Single line with endpoints (blue)
- Ray → Single line with one endpoint and one arrowhead (green)
- Parallel lines → Two lines that never meet (purple, horizontal)
- Perpendicular lines → Two lines intersecting at 90 degrees (orange, cross)
- Intersecting lines (not parallel or perpendicular) → Two lines crossing at an angle (black, slanted)
- Right angle → Angle marked with a square corner (brown, L-shape)
- Acute angle → Small angle less than 90 degrees (pink, V-shape)
- Obtuse angle → Wide angle greater than 90 degrees (brown, wide V)
- Straight angle → Flat line forming 180 degrees (gray, horizontal line)