A regular quadrilateral is called a square. Irregular polygons are shapes that have sides and angles of different sizes. You can always identify the polygon by how many sides it has. For example a ...

Scientists tested crows on their ability to recognize “geometric regularity,” a skill previously assumed to be unique to ...

They are the same. Here is a table to help you remember how to identify some common 2D shapes by their properties. A polygon is a 2D shape with straight sides that meet at vertices. Polygons have ...

As you scan the shapes, pay close attention to the color patterns. Each shape has a specific color scheme, and one doesn't ...

A new study finds that carrion crows can recognize geometrical shapes, a skill previously seen only in humans.