and their angles
Description: Two Parallel Lines Intersected by a Transversal Line
Image copyright: Created in Paint 2009
1. transversal- a line that crosses two or more lines
2. angle- the length or turning between two lines at a point
3. parallel- lines that stay the same distance apart
4. perpendicular- right angles that face the horizon
5. adjacent angle- angles that come right after the other
6. alternate exterior angle- parallel lines intersect by a transversal
7. alternate interior angle- parallel lines intersected by a transversal
8. vertical angle- a geometric line that goes up and down
9. acute angle- less than 90º
10. obtuse angle- more than 90º
11. right angle- exactly 90º
Key:
parallel lines: EN & AL
transversal line: MG
adjacent angle: 1&3,1&2,3&4,3&2,5&8,5&6,7&8,7&6
alternate exterior angle: 4&6, 1&8
alternate interior angle: 3&5, 7&2
vertical angle: 1&3, 2&4, 5&7, 6&8
acute angle: 2&4, 6&8
obtuse angle: 1&3, 5&7
right angles, if any: none
