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Published byBlake Howell Modified over 4 years ago

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Geometry Chapter 1-1

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**Why do chairs sometimes wobble?**

What do the feet of a three legged stool represent? Points that lie in the same plane. Why does a four legged chair sometimes wobble on a flat surface? One of the legs represents a point that doesn’t lie in the same plane as the other 3.

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**Key Terms A point is simply a location**

A line is made up of points that has no thickness or width. Points that are on the same line are said to be collinear.

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**Terms cont… A plane is a flat surface made up of points.**

Points that lie on the same plane are said to be coplanar. A plane has no depth and extends infinitely in all directions. Points are often used to name lines and planes.

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Section 1-2 Points, Lines and Planes. A Point A point has no length, no width and no thickness. It is named using capital printed letters. A.

Section 1-2 Points, Lines and Planes. A Point A point has no length, no width and no thickness. It is named using capital printed letters. A.

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