Geometry Terms

2. – has no size; length, width, or height. It is represented by a dot and named by a capital letter.
5. – angle whose measure is greater than 90 degrees but less than 180 degrees.
6. – angle whose measure is 180 degrees.
10. - is the part of a line that contains an endpoint and all points extending in the other direction.
11. – segments that have the same length.
12. – points that do not lie on the same plane.
14. – set of all points.
16. – set of points which has infinite length but no width or height. A line is named by a lower case letter or by any two points on the line.
17. - triangle that has all acute angles.
18. – points that lie on the same plane.
20. – angle whose measure is between 0 degrees and 90 degrees.

1. – angle whose measure is 90 degrees.
3. – angles that have the same measure.
4. – line, ray segment, or plane that divides a segment into two congruent segments.
6. – part of a line that consists of two points called endpoints and all points between them.
7. – the figure formed by three segments joining three noncollinear points. Each of the three points is a vertex of the triangle and the segments are the sides.
8. – a point that divides the segment into two congruent segments.
9. – points that do not lie on the same line.
13. – points that lie on the same line.
15. – ray that divides an angle into two congruent adjacent angles.
19. – set of points that has infinite length and width but no height. We name a plane with a capital letter.