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MatematikaRia.com

# Geometry

Geometry is all about shapes and their properties.

The two most common subjects are:

 Plane Geometry (is about flat shapes like lines, circles and triangles ... shapes that can be drawn on a piece of paper) Solid Geometry (is about three dimensional objects like cubes and pyramids).

If you like playing with objects, or like drawing, geometry is for you!

 Hint: Try drawing some of the shapes and angles as you learn ... it helps.

## Solids !

Solid Geometry is the geometry of three-dimensional space - the kind of space we live in ...

Polyhedra :
(they must have flat faces)
 Platonic Solids Prisms Pyramids

Non-Polyhedra:
(if any surface is not flat)
 Sphere Torus Cylinder Cone

Also: Volume of a Cuboid

## Plane Geometry

Plane Geometry is all about shapes on a flat surface (like on an endless piece of paper).

Here is a list of our pages related to plane geometry:

### General

Polygons

 Pentagon Pentagram Hexagon

Ellipse

Conic Sections

Set of all points