Unit 3 Sections 3-1 to 3-4

Question 1

Transversal?

Answer 1

A line that intersects two coplanar lines in two different points.

Question 2

Alternate interior angles?

Answer 2

Two nonadjacent interior angles on opposite sides of a transversal.
Two pairs.

Question 2

Alternate exterior angles?

Answer 2

Two nonadjacent exterior angles on opposite sides of a transversal.
Two pairs.

Question 2

Same-side exterior angles?

Answer 2

Two nonadjacent exterior angles on the same side of a transversal.
Two pairs.

Question 3

Same-side interior angles?

Answer 3

Two nonadjacent interior angles on the same side of a transversal.
Two pairs.

Question 4

Corresponding angles?

Answer 4

Two nonadjacent angles on the same side of a transversal such that one is an exterior angle and the other is an interior angle.
Four pairs.

Question 5

Exterior angles of triangles?
Exterior angle of a polygon?

Answer 5

Exterior angles of a polygon:
an angle formed by a side and an extension of an adjacent side.

Question 6

Remote interior angles?

Answer 6

For each exterior angle of a triangle, the two nonadjacent angles are the remote interior angles.