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WRITE YOUR OWN LEARNING ABOUT THE LESSON. (4-5 Sentences will do)

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For more problems and solutions visit http://www.mathplanet.com

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A space extends infinitely in all directions and is a set of all points in three dimensions. You can think of a space as the inside of a box.

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A plane extends infinitely in two dimensions. It has no thickness. An example of a plane is a coordinate plane. A plane is named by three points in the plane that are not on the same line. Here below we see the plane ABC.

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A part of a line that has defined endpoints is called a line segment.  A line segment as the segment between A and B above is written as:

AB¯¯

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Two lines that meet in a point are called intersecting lines.

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A line is defined by two points and is written as shown below with an arrowhead.

AB↔

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A line is defined as a line of points that extends infinitely in two directions. It has one dimension, length. Points that are on the same line are called collinear points.

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A point in geometry is a location. It has no size i.e. no width, no length and no depth. A point is shown by a dot.An example of a point

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WHAT ARE THE UNDEFINED CONCEPTS AND FOUNDATION OF GEOMETRY

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WHAT ARE THE UNDEFINED CONCEPTS AND FOUNDATION OF GEOMETRY

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1. POINT
2. LINE
3. PLANE