Previous Standard
Classify two-dimensional figures based on the presence or absence of parallel or perpendicular lines, or the presence or absence of angles of a specified size. Recognize right triangles as a category, and identify right triangles.
Worksheets
![4.g.3 Worksheets - Determining Symmetry worksheet 4.g.3 Worksheets - Determining Symmetry worksheet](/math/shapes/symmetry/english/thumb.png)
![4.g.3 Worksheets - Determining Symmetry worksheet 4.g.3 Worksheets - Determining Symmetry worksheet](/math/shapes/symmetry/english/thumb.png)