click below
click below
Normal Size Small Size show me how
Angle Vocabulary
All about Angles!
| Question | Answer |
|---|---|
| ray | has one endpoint |
| angle | has 2 rays that share the same endpoint |
| vertex | the shared endpoint of the rays |
| point | an exact location in space |
| degree | the unit of measure for angles |
| one-degree angle | an angle that turns through 1/360 |
| right angle | an angle that turns through 90/360 or 1/4 of a circle |
| straight angle | an angel that turns through 180/360 or 1/2 of a circle. it measure 180 degrees |
| acute angle | measure between 0 and 90 |
| prependicular | like the sides of a square or rectangle |
| obtuse angle | measures between 90 and 180 |
| protractor | tool used to measure angle |
| line | endless collection of points along a straight line |
| line segement | part of a line that has two endpoints |
| parallel lines | lines that never meet or cross |
| perpendicular lines | lines that meet, or cross to form a right angle |