Classify Figures based on Parallel Sides

Classification of a pair of lines as parallel or perpendicular is an important tool in classifying various two dimensional figures. For example, a parallelogram has two pair of parallel lines; a rectangle has two pairs of perpendicular and two pairs of parallel lines. In Classify Figures based on Parallel Sides Worksheet, students identify shapes with specified number of parallel or perpendicular lines.

Common Core Alignment

4.G.2Classify 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.