3rd Grade Shapes & Polygons Worksheets
3rd Grade Shapes & Polygons: classify polygons and quadrilaterals by their sides and attributes. Every worksheet is free, prints as a PDF with an answer key, and can be assigned online. The ones teachers open most are first.
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3g1
Name a regular polygon by counting its sides (triangle through decagon). Use the words triangle, quadrilateral, pentagon, hexagon, heptagon, octagon, nonagon, and decagon correctly. Tell that a shape is regular by noticing its equal sides and equal angles. Count sides and vertices carefully to avoid mixing up similar-looking polygons.
3g1
Decide whether a polygon is regular or irregular by checking if all sides and angles match. Spot shapes that look similar but are irregular because one side or angle is different. Use words like side, angle, and vertex to describe why a shape is regular or irregular. Compare different polygons and sort them into regular and irregular groups.
3g1
Identify common polygons by name when you read a short word problem. Count and match the number of sides to the correct shape. Use shape clues in a sentence (like “has 8 sides”) to choose the right polygon.
3g1
Count the sides and corners (vertices) of a polygon to figure out what it is. Name irregular polygons as quadrilaterals, pentagons, hexagons, heptagons, octagons, nonagons, or decagons. Use shape clues like sides, angles, and vertices to choose the correct polygon name.
3g1
Identify polygons by counting how many sides they have (5 to 10). Match each shape name to the correct picture (pentagon through decagon). Tell the difference between similar-looking polygons by checking the number of sides and corners.
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