Lines of symmetry worksheets

Lines of symmetry worksheets for fourth grade show one shape per problem (squares, rectangles, triangles, trapezoids, and regular polygons) and ask how many lines of symmetry it has. Answers run from zero for a scalene triangle to eight for a regular octagon.

By grade

What students need to know

A line of symmetry is a fold line. Fold the shape there and the two halves match exactly.

This skill runs from 4th grade through 4th grade. Pick a grade above for level-matched sentences, teaching notes, and worksheets.

Lines of symmetry across the grades

4th grade

Lines of symmetry worksheets for fourth grade show one shape per problem (squares, rectangles, triangles, trapezoids, and regular polygons) and ask how many lines of symmetry it has. Answers run from zero for a scalene triangle to eight for a regular octagon.

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