Basic Geometry

5. a sentence that is either true or false, but not both
7. a number associated with a point on a number line
9. the measurement of the space occupied by a solid region
14. a four-sided closed figure with four vertices
16. a geometric turn of a figure around a fixed point
17. the ratio of the rise, or vertical change, to the run, or horizontal change
20. the distance around a circle
21. a logical argument used to validate a conjecture
23. a figure formed by three noncollinear points connected by segments
24. a parellelogram with four right angles
25. a segment of a circle whose endpoints are on the circle
27. any object that can be used as a guide to draw a straight line
29. an equation that shows how certain quantities are related
30. a basic undefined term of geometry. Lines extend indefinitely and have no thickness or width

1. the slide of a figure from one position to another
2. an instrument used to draw circles and arcs of circles
3. a part of a line that has an endpoint and contains all the points of the line without end in one direction
4. a unit of measure used when measuring angles
6. a quadrilateral with exactly one pair of parallel sides called bases, and nonparallel sides called the legs
8. a parallelogram with four congruent sides
10. quadrilateral with 4 congruent sides and 4 right angles
11. a comparison of two numbers by division
12. a segment of a circle whose endpoints are the center of the circle and a point on the circle
13. in a plane, a line that intersects two or more lines, each at a different point
15. the flip of a figure over a line to produce a mirror image
18. a statement used to compare nonequal measures
19. an instrument used to measure angles in degrees
22. a part of a line that has an endpoint and contains all the points of the line without end in one direction
26. in a plane, a line that intersects a circle at exactly one point. the point of intersection is the point of tangency
28. a segment joining two nonconsecutive vertices of a polygon