Geometry Vocab

4. two angles whose measures sum is 180 degrees
5. a parallelogram with four equal sides
6. two lines that cross at one point
9. parallel to the horizon, east to west
10. perpendicular to the horizon, north to south
11. an angle with a measure of exactly 90 degrees
14. a particular place in space
15. a polygon with four sides
18. a polygon with eight sides
19. the PLURAL form of a segment that has one endpoint at the center and the other endpoint on the circle
20. two angles whose measures sum is 90 degrees
23. an angle with a measure of greater than 90 degrees but less than 180 degrees
24. a quadrilateral with both pairs of opposite sides parallel
26. a parallelogram with four right angles and four congruent sides
27. a polygon with six sides
28. a segment that passes through the center of a circle and has both endpoints on the circle

1. a geometric tool used to draw circles and arcs
2. the point that divides a segment into two congruent segments
3. having the same size and shape
7. a three-dimensional figure
8. the perimeter of a circle
12. a polygon with three sides
13. two lines that intersect at right angles
14. a closed plane figure formed by three or more line segments that do not cross
16. a collection of points lying in one plane, extending forever in two directions
17. the number of cubic units needed to fill the space inside a three-dimensional figure
21. two lines lying in the same plane that do not intersect
22. an angle with a measure of less than 90 degrees
25. a segment that connects two vertices that are not next to each other