Description: Angles and Transversals! :)
Image copyright: My Own Creation 2009 in paint.
Period 2/3
1.-transversal- a line that cuts across two or more other lines.
2.-angle- the 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- next to each other.
6.-alternate exterior angle- pair of parallel lines is intersected by a transversal. Outside the parallel lines.
7.-alternate interior angle- pair of parallel lines is intersected by a transversal. Inside the parallel lines.
8.-vertical angle- pair of angles directly opposite of each other, formed by the intersection of straight lines.
9.-acute angle- an angle measuring less than 90 degrees.
10.-obtuse angle- any angle between 90 and 180 degrees.
11.-right angle- an angle measuring 90 degrees.
Key:
Segment BC is parallel to segment DE.
Angles 1&2 and 5&6 are obtuse angles.
Angles 7&8 and 3&4 are acute angles.
Angles 1&3 and 5&7 are vertical angles.
Angles 5&8 and 3&2 are alternate interior angles.
Angles 7&6 and 1&4 are alternate exterior angles.
Angles 1&3, 3&2, 2&4 are adjacent angles.
Segments A and F are transversal.
