Geometric shapes: 2-dimensional
The shapes shown below may be useful reminders to you as you help with your child’s geometry homework. Each geometry shape includes a brief description and an illustrated example.
List of shapes
|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)|
More Math Help
There are more geometry definitions included in this section.