What Makes a Shape?

Watch to see how we group shapes by their sides and corners (vertices)!


Sides vs. Corners

A side is a straight line. A corner is where two lines meet.

Triangle
3 Sides
3 Corners
Square
4 Equal Sides
4 Corners
Rectangle
4 Sides (2 long, 2 short)
4 Corners
Circle
0 Sides
0 Corners
How many sides?


🏆 Shape Master!

You can identify 2D shapes like a pro! You know exactly what makes a triangle a triangle.