Geometry

3. flat surface that extends without end and has no thickness
5. A polygon that has all interior angles less than 180°
7. ruler with no markings on it
10. part of a line that consists of two endpoints and all points between them
11. a straight strip or cylinder of plastic, wood, metal, or other rigid material, typically marked at regular intervals, to draw straight lines or measure distances
12. A line is perpendicular to another if it meets or crosses it at right angles (90°)
13. a 180 degree angle
14. two lines that intersect to form right angles
16. segment is a point that divides the segment into two congruent segments
19. Two or more lines that intersect at only one point
21. two rays that share the same endpoint and form a line
23. the point, line, ray, or segment
24. Two objects are __________ if they both lie in the same plane
25. A polygon that has one or more interior angles greater than 180°
26. A set of points that lie in a straight line
29. the endpoint is the __________ of the angle

1. the real number that corresponds with the point two segments that have the same length
2. straight path that extends in two opposite directions without end and has no thickness
3. an instrument having a graduated arc for plotting or measuring angles
4. sum of the lengths of a polygons side
6. set of points the figures have in common
8. An angle with a measure between 0° and 90°
9. unit of angle measurements equal to 1 over 360
12. segment is a line, ray, or segment that is perpendicular to the segment at its midpoint
15. formed by two rays with the same endpoint
17. indicates a location and has no size
18. number of square units enclosed in a ploygon
20. ordered set of numbers that define the position of a point
22. an accepted state or fact
24. geometrical tool used to draw circles and parts of circles called arcs
27. an angle that measure 90 degrees
28. An angle that is between 90° and 180°
30. part of a line that consists of one endpoint and all the points of the line one side of the endpoint