Description: Parallel lines cut by a transversal
Image copyright: My own Creation, 2009, in Paint
1.transversal-a line that goes through two or more lines
2.Angle-a figure formed by line segments that extends from a point.
3. Parallel-two lines that never interact with each other.
4. Perpendicular-right angles at an horizon
5. Adjacent angle-sides that are right next to each other.
6. Alternate exterior angle-parallel lines intersected by a transversal.
7. Alternate interior angle- parallel lines intersected by a transversal.
8. vertical angle-pair of angles opposite of each other
9.Acute angle-a measurement that is less than 90°.
10. Obtuse angle-an angle that measures between 90° and 180°.
11. Right angle-an angle that measures 90°.
Websites
http://www.teachers.ash.org.au/jeather/maths/dictionary.html
A maths dictionary for kids
http://www.mathpropress.com/glossary/glossary.html
On-Line Mathematics dictionary°°°
Key:
Segment AB is parallel to segment CD.
Obtuse angles: 1&2 5&6
Acute angles: 3&4 7&8
Alternate Interior angles: 2&3 5&8
Alternate Exterior angles 1&4 6&7
Transversal Line: E&F
Vertical angles: 1&2 3&4 5&6 7&8
Angles 1, 2, 3, 4, 5, 6, 7, and 8
Adjacent: 1&3 2&4 5&7 6&8
Parallel angles 1&5 3&7 4&6 2&8
