BASIC GEOMETRIC CONCEPTS

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Presentation transcript:

BASIC GEOMETRIC CONCEPTS Chapter 1 BASIC GEOMETRIC CONCEPTS

1. postulate A statement that is accepted without proof

2. point A location in space

3. line A geometric figure made up of infinitely many points; it extends endlessly in two directions

4. Line segment A part of a line; it has two end points

5. ray A part of a line; it has one end point

6. plane A flat surface; it has no thickness; it extends endlessly in all directions

7. Congruent line segments Line segments that have the same length

8. midpoint The point that divides a line segment into two congruent parts

9. bisector A line that intersects a line segment at its midpoint

10. Collinear points Points on the same line

11. theorem A statement that can be proved