base of a parallelogram (BAYSS UHV UH
pa-ruh-LEL-uh-gram) A term that can refer to
the length of any side of a parallelogram. (p. 282)
base of a triangle (BAYSS UHV UH
TRYE-ang-guhl) A term that can refer to the
length of any side of a triangle. (p. 284)
bases of a polyhedron (BAY-siz UHV UH
pol-ee-HEE-druhn) The parallel, congruent faces
of a polyhedron. (p. 302)
bias (BYE-uhss) Anything that favors a particular
outcome in a sampling procedure. (p. 208)
binomial (bye-NOH-mee-uhl) A polynomial with
two terms. (p. 382)
bisect(BYE-sekt) To divide a line segment or angle
into two congruent parts. (p. 248)
box-and-whisker plot (BOKS-AND-WISS-kur
PLOT) A graph that shows how data in a set are
distributed without showing all the values in the
data set. (p. 222)
C
center (SEN-tur) The point inside a circle from which
all points on the circle are equidistant. (p. 262)
center of rotation (SEN-tur UHV roh-TAY-shuhn)
The point around which a figure rotates to create
a transformation called a rotation. (p. 372)
central angle (SEN-truhl ANG-guhl) An angle that
has its vertex at the center of a circle. (p. 262)
certain event (SUR-tuhn i-VENT) An event that
musthappen. (p. 330)
chord (KORD) A line segment with its endpoints
on a circle. (p. 262)
circle (SUR-kuhl) A set of points in a plane, all of
which are the same distance from a given point
called the center. (p. 262)
circle graph (SUR-kuhl GRAF) A graph used to
show parts of a whole. (p. 264)
circumference (sur-KUHM-fur-uhnss) The
distance around a circle. (p. 286)
circumscribed polygon (sur-kuhm-SKRIBED
POL-ee-gon) A polygon that has all its vertices
on a circle. (p. 263)
closed sentence(KLOHZD SEN-tuhnss) A
numerical equation that does notcontain variables.
Closed sentences are either true or false. (p. 35)
Closure Property(KLOH-zhuhr PROP-ur-tee) If
performing an operation on any two numbers in a
set always results in a number that is in that set,
then the set is closed under that operation. (p. 16)
coefficient(koh-uh-FISH-uhnt) The numerical
factor of a term that contains a variable. (p. 33)
collinear points(koh-LIN-ee-ur POYNTS) Points
that lie on the same line. (p. 240)
combination (kom-buh-NAY-shuhn) A collection
of objects or items in which order does not
matter. (p. 344)
commission (kuh-MISH-uhn) The amount of
money earned for selling goods or services. (p. 196)
commission rate (kuh-MISH-uhn RAYT) The
percent of the total amount of goods or services
sold that is earned by the seller. (p. 196)
common multiples (KOM-uhn MUL-tuh-puhlz)
Multiples shared by two or more whole numbers.
(p. 112)
Commutative Property of Addition
(kuh-MYOO-tuh-tiv PROP-ur-tee UHV uh-
DISH-uhn) Changing the order of the addends
does not change the sum. abba. (p. 14)
Commutative Property of Multiplication
(kuh-MYOO-tuh-tiv PROP-ur-tee UHV
muhl-tuh-pluh-KAY-shuhn) Changing the order
of the factors does not change the product.
abba. (p. 14)
compatible numbers (kuhm-PAT-uh-buhl
NUHM-burz) Numbers that are easy to compute
mentally. (p. 82)
complement (KOMP-luh-muhnt) An angle of a
pair of angles having a sum of 90. (p. 244)
complementary angles(komp-luh-MEN-tuh-ree
ANG-guhlz) Two angles with a sum of 90. (p. 244)
complementary events (komp-luh-MEN-tuh-ree
i-VENTS) Two events that cannot occur at the
same time. (p. 335)
complex fraction (kuhm-PLEKS FRAK-shuhn) A
fraction that has a fraction or mixed number in
the numerator, the denominator, or both. (p. 127)
complex figure (kuhm-PLEKS FIG-yur) A figure
that is made up of two or more shapes. (p. 288)
composite number(kuhm-POZ-it NUHM-bur) A
whole number greater than 1 that has more than
two factors. The factors of 4 are 1, 2, and 4, so 4 is
a composite number. (p. 108)
compound event(KOM-pownd i-vent) An event
that consists of two or more simple events
considered as a single event. (p. 340)
compound inequality(KOM-pownd
in-i-KWOL-uh-tee) An inequality that consists
of two or more connected inequalities. (p. 55)Glossary 425Extended Glossary