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Geometry 2

Prefixes and Suffixes

The prefix can provide the number of sides, and the suffix can provide the dimension, such as 2D (-gon) or 3D (-hedron).

1

mono

2

di

3

tri

4

tetra

5

penta

6

hexa

7

hepta

8

octa

9

nona

10

deca

12

dodeca

20

icosa

2D Shapes

Pentagon

Hexagon

Octagon

Decagon

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Convex Kite

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Concave Kite

3D Shapes

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Square Pyramid

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Sphere

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Dimensions, Axis, Coordinates

1D, 1 Dimension: Along a line, the 1 axis, has 1 number of coordinates. (x)

2D, 2 Dimensions: Using 2 axis or lines, usually called x and y, has two numbers for coordinates. (x, y)

3D, 3 Dimensions: Using 3 axis or lines, usually x, y, z. Use 3 coordinate numbers. (x, y, z)

That's great, but who cares? Here are real world examples:

Maps and location services require different coordinate systems and knowledge.

Milling machine operators require knowledge of part geometry and machine coordinate systems.

Architects can use geometry artistically too.

Shapes and Patterns in Nature

When Geometric shapes match nature, is it coincidence?

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