Points, Lines, Rays, and Line Segments
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Grade 3 Math · Lines and Symmetry
Points, Lines, Rays, and Line Segments
Geometry worksheet for Grade 3: name a point, a line, a ray and a line segment, and say whether pairs of lines are parallel, perpendicular, or intersecting. With an answer key.
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- Pages
- 1
- Last updated
- Time
- About 15 minutes
- Answer key
- Included
- Printing
- Black and white
Reviewed by Ms. Olivia Parker, Teacher. How we check worksheets
How to use this sheet
- Have a small mirror, or fold paper shapes, to check lines of symmetry.
- For parallel and perpendicular, have the child trace the lines with two fingers and see if they could ever meet.
- Have the child label each figure with its symbol, such as arrows for a line and a dot for an end point.
Common mistakes
- Thinking a diagonal of a rectangle is a line of symmetry. Fold one to check: the halves do not match.
- Mixing up a ray and a line segment. A ray has one end point and goes on in one direction.
- Calling lines perpendicular if they cross at any angle. Perpendicular lines make right angles.
