Properties of Parallel Lines
Lines AB and FC are parallel. Line BC is a transversal of the two parallel lines AB and FC.
Use points A, B, and C to change the angle values. When a transversal intersects two parallel lines, what angle relationships are formed? Make as many observations as you can.
When a transversal intersects parallel lines, what is the relationship between corresponding
angles?
When a transversal intersects parallel lines, what is the relationship between alternate
interior angles?
When a transversal intersects parallel lines, what is the relationship between same-side
interior angles?
This question has four parts (a-d)
a. Identify a pair of corresponding angles: ____________ & ____________.
b. Record the measure of each: ____________ & ____________.
Move either the transversal and/or the parallels, by moving points A, B, or C.
c. Record the measures of the same two angles: ____________ & ____________.
Form a conclusion from your observations:
d. If parallel lines are cut by a transversal, then corresponding angles are ___________________.
This question has four parts (a-d)
a. Identify a pair of alternate interior angles: ____________ & ____________.
b. Record the measure of each: ____________ & ____________.
Move either the transversal and/or the parallels, by moving points A, B, or C.
c. Record the measures of the same two angles: ____________ & ____________.
Form a conclusion from your observations:
d. If parallel lines are cut by a transversal, then alternate interior angles are ___________________.
This question has four parts (a-d)
a. Identify a pair of same-side interior angles: ____________ & ____________.
b. Record the measure of each: ____________ & ____________.
Move either the transversal and/or the parallels, by moving points A, B, or C.
c. Record the measures of the same two angles: ____________ & ____________.
Form a conclusion from your observations:
d. If parallel lines are cut by a transversal, then same-side interior angles are ___________________.