Chapter 3

Question 1

alternate

exterior angles

Answer 1

For two lines intersected by a transversal, a pair of angles that lie on opposite sides of the transversal and outside the other two lines.

Question 2

alternate interior

angles

Answer 2

For two lines intersected by a transversal, a pair of nonadjacent angles
that lie on opposite sides of the transversal and between the other two lines.

Question 3

distance from a point to a line

Answer 3

The length of the
perpendicular segment
from the point to the
line.

Question 4

parallel planes

Answer 4

Planes that do not

intersect.

Question 5

point-slope form

Answer 5

y - y1 = m(x - x1), where m is the slope and (x1 y1) is a point on the line.

Question 6

same-side

interior angles

Answer 6

For two lines
intersected by a
transversal, a pair of
angles that lie on the
same side of the
transversal and
between the two lines

Question 7

slope

Answer 7

A measure of the
steepness of a line. If
(x1, y1) and (x2, y2) are
any two points on the
line, the slope of the
line, known as m, is (y2-y1)/(x2-x1)