| A | B |
|---|
| An angle whose measure is less than 90 degrees | Acute angle |
| An angle whose meaure is between 90 and 180 degrees | Obtuse angle |
| An angle whose measure is exactly 90 degrees | Right angle |
| An angle whose measure is exactly 180 degrees | Straight angle |
| A straight angle is also called a ___. | Line |
| An exact location in space | Point |
| A part of a line that has 1 endpoint and extends indefinitely in the other direction | Ray |
| A part of a line with 2 endpoints | Segment |
| A flat surface that extends indefinitely in all directions | Plane |
| A figure formed by 2 rays with a common endpoint | Angle |
| The common endpoint of an angle | Vertex |
| 2 angles whose measures add up to 90 degrees | Complementary angles |
| 2 angles whose measures add up to 180 degrees | Supplementary angles |
| Rename angle XYZ in 2 ways. | <ZYX and <Y |
| Name the vertex of angle CAB. | A |
| If <1 and <2 are complementary angles and the m<1 = 35 degrees, what is the m<2? | 55 degrees |
| If <3 and <4 are supplementary angles and the m<4 = 20 degrees, what is the m<3? | 160 degrees |
| Given a line with points A, B, and C, how many different ways are there to name the line? | 6 ways |
| Can you rename segment MN? | Yes |
| Can you rename ray RS? | No |
