Description: parallel transversal
Image copyright: own creation
1. transversal: A line that crosses over two or more lines
2. angle: amount of turning between two lines meeting at a common point
3. parallel: lines that are the same distance apart
4. perpendicular: At right angles to the horizon
5. adjacent angle: Angles are close to each other
6. Alternate exterior angle: A pair of parallel lines intersected by a transversal.
7. alternate interior angle: In a drawing like this (where there is a set of parallel lines
8. vertical angle: vertical is a perpendicular to the horizon
9. acute angle: It is measure less than 90º
10. obtuse angle: Angle whose measure is greater than 90º
11. right angle: right angle is used 90º
KEY
Segment AB is parallel to segment CD transversal: ED
Vertical Angles: 1&4 5&8 2,3,6,7
Adjacent angles: 1&2 5&6
Alternate interior angle: 2& Alternate exterior angle: 7 4&5
Alternate exterior angle: 6&3 1&8
Acute angles: 2,3,7,6,
Obtuse angles: 1,4,5,8,