| A | B |
|---|
| Undefined term #1 | point |
| Undefined term #2 | line |
| Undefined term #3 | plane |
| Has no size, only location | point |
| Named with a single capital letter | point |
| Goes on forever in 2 directions | line |
| Points that lie on the same line | collinear |
| Things that lie on the same plane | coplanar |
| Named by 2 points with arrow above the letters | line |
| Flat & goes on forever in all directions | plane |
| Named by 3 noncollinear points or a script capital letter | plane |
| Part of a line with 2 endpoints | segment |
| Named by its 2 endpoints | segment |
| Formed by 2 rays with a common endpoint | angle |
| The common endpoint of the 2 rays that make an angle | vertex |
| The sides of an angle are formed by 2 of these | rays |
| Starts at 1 endpoint and goes on forever in 1 direction | ray |
| This can be named using 3 points, a single point, or a number | angle |
| A statement that is accepted as true w/o proof. | postulate |
| The intersection of 2 lines is a | point |
| The intersection of 2 planes is a | line |
| Through any 3 noncollinear points there is exactly 1 | plane |
| If 2 points are in a plane, then the line containing them | lies in the same plane |
| An edge of a box is best modeled by what geometric figure? | line |
| The tip of a straight pin is best represented by what geometric figure? | point |
| A sheet of paper is best modeled by what geometric figure? | plane |
| When 2 or more geometric figures have 1 or more points in common, the are said to ________________. | intersect |
| True or False: Through 2 points there can be an infinite number of lines. | False |
| True or False: Three collinear points are also coplanar. | True |
| True or False: Three coplanar points are also collinear. | False |
| True or False: Through ANY 3 points there is exactly 1 plane. | False |
| True or False: Through any three noncollinear points there is exactly 1 plane. | True |
| True or False: If points Q and T lie on plane Y, then line QT is also in plane Y. | True |
| True or False: When naming an angle using 3 letters, the vertex point MUST be the 1st letter of the angle name. | False |
| A distant star is best modeled by a ? | Point |
| A plane of glass is best modeled by a ? | Plane |
| A piece of string is best modeled by a ? | Line |
