Noelia Cueto
martes, 29 de octubre de 2013
Basic Geometry Concepts
Points
:
In geometry ,we usually the point with a number or letter.
Every point needs a name. To name a point, we can use a single letter.
Lines
:
We can use a
line
to connect two points on a sheet of paper. In geometry, a line is perfectly straight and extends forever in both directions.
Planes
:
A plane is made up of an infinite amount of lines. Two-dimensional figures are called plane figures.
Space
:
Space is the set of all points in the three dimensions. It is made up of an infinite number of planes. Figures in space are called solids.
Rays:
A
ray
is part of a line that extends without end in one direction. It starts from one endpoint and extends forever in one direction.
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