Geometry In A Whole Different Way
Description: Cool Transversals
Image copyright: My Own Creation, 2009, Made In Paint
1. Transversal - a line that crosses two or more lines.
2. Angle - An angle is the set of points when two rays both start at the same point.
3. Parallel – Two lines are parallel if they never intersect.
4. Perpendicular – Two lines are perpendicular if they intersect in a 90 degree angle.
5. Adjacent angle – Adjacent means that two things are next to each other.
6. Alternate exterior angle – When a pair of parallel lines is intersected by a transversal.
7. Alternate interior angle – When a pair of parallel lines is intersected by a transversal
8. Vertical angle – Pair of angles directly opposite of each other, formed by the intersection of straight lines.
9. Acute angle – One whose measure is less than 90 degrees.
10. Obtuse angle – an angle whose measure is greater than 90 degrees.
11. Right angle – an angle whose measure is 90 degrees.
KEY:
* parallel lines : Line Segment CD & EF
* transversal line : Line Segment AB
* adjacent angle : 1 & 2, 2 & 3, 3 & 4, 4 & 1, 5 & 6, 6 & 7, 7 & 8, 8 & 5
* alternate exterior angle : 4 & 6, 1 & 7
* alternate interior angle : 2 & 8, 3 & 5
* vertical angle : 1 & 3, 5 & 7, 4 & 2, 8 & 6
* acute angle : 4, 2, 6, 8
* obtuse angle : 1, 3, 5, 7
* right angles, if any : None
