There are 4 types of special angles that can be made with parallel lines that are cut by a transversal. A transversal is a line that intersects two or more other coplanar lines. Shown in the image below:
When the transversal cuts between the two parallel lines it forms three types of angle pairs: Corresponding angles, Alternate interior angles and Alternate exterior angles.
 |
Once the Parallel lines are cut by the transversal , the corresponding angles are always congruent , unless the two angles don't equal up to 180 degrees.
|
 |
Since the corresponding angles angles are congruent, the alternate interior angles will be too.
|
 |
| The alternate exterior angles will also be congruent because the interior angles are already congruent and because they're verticle angles |
No comments:
Post a Comment