Geometric shapes: 2-dimensional

The shapes shown below may be useful reminders to you as you help with your children's geometry homework. Each geometry shape includes a brief description and an illustrated example.

List of shapes

Description

Polygon A closed figure made of line segments each of which intersects with exactly two other line segments.  Square A quadrilateral having all sides equal in length and forming right angles. Triangle A 3-sided polygon (sum of internal angles = 180°) Rectangle A 4-sided polygon with all right angles. Parallelogram 4-sided polygon with two pairs of parallel sides. Pentagon 5-sided polygon (the graphic shows a regular hexagon with "regular" meaning each of the sides are equal in length) Hexagon 6-sided polygon Heptagon 7-sided polygon Octagon 8-sided polygon Note: Use this printable graph paper generator to create grids that can help when drawing shapes.

More Math Help

All Geometry 24 Worksheets Terms/ Definitions Formulas/ Equations 2D Shapes Defining Attributes 3D Shapes Quadrilaterals Measuring Angles Using a Protractor Adding and Subtracting Angles Angle Properties Finding Angles Symmetry Area Volume Surface Area Perimeter Coordinate System Coordinate Graphing Pythagoras' Theorem Distance Between Two Points Congruent Triangles Similar Triangles Transformations Dilations

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