Can you choose the correct shapes using the number of sides and corners? Rise and Shine is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV ...

2D shapes can be found printed in a book or on a website. 2D shapes have sides and corners. A rectangle has 4 straight sides and 4 corners. A square is a special type of rectangle, where all 4 ...

In a 2D the answer is two, and a 3D space can be tiled in shapes that have no corners at all, called soft cells. These shapes can be made in a few different ways, and some are shown here.