Chap. 3 Vocabulary Flashcards
_____ _____ are coplanar lines that do not intersect
parallel lines
_____ _____ _____ are nonadjacent exterior angles that lie on opposite sides of the transversal.
alternate exterior angles
_____ _____ are planes that do not intersect.
parallel planes
A _____ is a line that intersects two or more coplanar lines at distinct points.
transversal
An _____ _____ is a line that you add to a diagram to help explain relationships in proofs.
auxiliary line
_____ _____ _____ are interior angles that lie on the same side of the transversal.
same-side interior angles
_____ _____ lie on the same side of the transversal and in corresponding positions.
corresponding angles
An _____ _____ of a polygon is an angle formed by a side and an extension of an adjacent side.
exterior angle
For each exterior angle of a triangle, the two nonadjacent interior angles are its _____ _____ _____.
remote interior angles
The _____ _____ of an equation of a nonvertical line is y-y_=m(x-x_)
point-slope form
_____ _____ are noncoplanar, are not parallel and do not intersect.
skew lines
The ____ of a line is the ratio of the vertical change to the horizontal change between any two points.
slope
In a _____ _____, arrows show the logical connections between the statements, with reasons written below the statements.
flow proof
_____ _____ _____ are nonadjacent interior angles that lie on opposite sides of the transversal.
alternate interior angles
The _____ _____ of an equation of a nonvertical line is y=mx+b
slope-intercept form
