## What is Geometry?

**Geometry** is the mathematical study of figures and shapes. Let’s find out the difference between **figures** and **shapes**, define **angles** and of course, play and learn how angles form **polygons**–closed, straight sided figures.

**Figures vs. Shapes**

A geometric figure is the entire object, while a shape is the outer form of the object.

There are two types of figures: plane figures and solid figures.

**2-D, two-dimensional figures**, such as the yellow paper in the diagram have length and width. **Plane geometry **is a study of **plane figures**–2-D figures.

**3-D, three-dimensional figures**, such as the pencil and the child’s hands in the diagram have length, width, and height. **Solid geometry** is a study of **solid figures**–3-D figures.

**Where do angles fit in?**

After studying the following information about angles, use the **Math is Fun drawing pad**to practice drawing a five-pointed star using the dot-to-dot method. Then draw a

**pentagon**–a closed figure with five straight sides. Add a

**triangle**(three sided polygon) on each of the five sides–what do you think of your star design now?

**Names of Different Types of Angles**

Science For Every Kid: Geometry |