| 4. | A segment of the circumference of a circle. |
| 6. | The branch of mathematics that deals with the measurement properties and relationships of points,line,angles,surfaces,and solids. |
| 9. | The set of all points in space equidistant from a fixed point called the center. |
| 11. | A pair of rays that have a common endpoints ,provided that the rays do not lie on line. |
| 14. | A polyhedron with two congruent parallel faces known as bases. |
| 15. | A line segment joining two nonconsecutive vertices of a polygon. |
| 17. | The distance around a circle. |
| 18. | A quadrilateral in which the opposite sides are parallel. |
| 19. | Represents an exact location in space. It has no size. |
| 21. | The number of a square units contained in the interior of a plane figure. |
| 23. | In a right triangle, the side opposite the right angle. |
| 25. | An expression that compares two quantities by division. |
| 28. | A quadrilateral with exactly one pair of opposite sides parallel. |
| 30. | Two angles sharing a common side and vertex but no interior points in common. |
| 31. | A flat polygonal surface of a polyhedron. |
| 33. | A statement that validity or truth of which are assumed without proof. |
| 34. | A four-sided polygon. |
| 36. | A method of constructing a valid argument. |
| 37. | A parallelogram whose sides and angles are all congruent. |
| 39. | A solid form by polygons that enclose a single region in space. |
| 42. | Angles whose vertex is on the circle and whose side are chords of the circle. |
| 43. | The second coordinate in an ordered pair representing a point obtuse angle. |
| 44. | A set of infinitely many points in straight arrangement and extends indefinitely in opposite directions. |
| 45. | A line, A segment, or a ray that intersect a circle at exactly one point. |
| 46. | Is a line which intersects the circle at two distinct points. |
| 47. | A line segment that joins the center of a circle to a point on the circle. |