Geometry Unit 2 Vocabulary

4. to draw shapes, angles or lines accurately using a compass and straightedge.
8. a part of a line that has one endpoint and goes on infinitely in only one direction.
9. a pair of angles that are outside the two parallel lines but on either side of the transversal.
10. lines passing through the midpoint of each side which are perpendicular to the given side.
11. a quadrilateral with both pairs of opposite sides parallel.
14. angles opposite each other where two lines cross.
16. a point that is equidistant from both ends of a line segment.
18. a statement that can be proved to be true based on known and proven facts.
19. part of a line which has defined endpoints.

1. a pair of angles that are inside the two parallel lines but on either side of the transversal.
2. a semicircular geometry tool divided into 180 equal parts, each measuring 180 degrees.
3. algebraic expression that gives the distances between pairs of points in terms of their coordinates.
5. divides the angle into two angles of equal measure.
6. any pair of angles each of which is on the same side of one of two lines cut by a transversal and on the same side of the transversal.
7. a flat, two-dimensional surface with an infinite height and width.
8. a parallelogram with four right angles.
10. a location represented by a dot.
12. a pair of adjacent angles formed when two lines intersect.
13. a one-dimensional figure, which has length but no width.
15. an instrument with two arms, one sharp and one with a pencil that can be used to draw circles or arcs.
17. a logical argument that will explain why a statement is true.