Copy of Naming Angle Positions
Definition: A transversal is a line that intersects 2 other lines at 2 distinct points.
In the applet, the dashed line below is a transversal. (Actually, each of the three lines displayed below is a transversal.)
When a transversal intersects 2 other lines, special names are given to certain pairs of angles.
These angle pairs are called corresponding angles, alternate interior angles, alternate exterior angles, same-side interior angles, and same-side exterior angles.
Explore these angle pairs within the applet below. Then, answer the questions that follow.
Questions:
1) What does the term "same-side" mean in the phrases "same-side interior angles" and "same-side exterior angles"?
Same-side means that they are on the same side of the transversal and on the either interior or exterior
2) What does the term "alternate" mean in the phrases "alternate interior angles" and "alternate exterior angles"?
The alternate means that they are on opposite sides of the transversal on either the exterior or interior
3) Which of the four displayed angles would be considered "interior" angles? Why is this?
alternative interior and same-side interior angels since they are all on the inside
4) Which of the four displayed angles would be considered "exterior" angles? Why is this?
alternative exterior and same-side exterior angels since they are on the outside
5) How would you describe, in your own words, what it means for a pair of angles to be described as "corresponding angles"?
Corresponding angles i would describe as on the same side of the transversal and both would be either on top or below the other line