C
Capacity A measure of the volume of a container.
Cardinal
number The number obtained by counting the elements contained in a set
Cell
Each section of a spreadsheet. A cell contains data, labels or formulas.
Center
(of circle) A circle is the set of all points in a plane which are the same
distance from a given point.
The
given point is called the center of the circle
Center
The point that lies equidistant from all points on a circle or a sphere.
Centigrade
The temperature scale used as a standard scale in science and industry, on
which the freezing point
of
water is O' and the boiling point is 100°'
Central
angle An angle whose vertex is the center of a circle and whose sides are
determined by two radii of the circle
changing its
shape or size.
Chord
A segment that joins two points on a circle.
Circle
A plane figure made up of all points that are the same
distance from a given point in the plane.
Circumference
The perimeter of a circle.
Closed
curve A curve whose representation begins and ends at the same Point
Closed
curve A curve whose representation begins and ends at the same point
Closure
property of addition (for whole numbers) The sum of any two whole numbers is
a whole number
Closure
property of addition (for whole numbers) The sum of any two whole numbers is
whole number
Cluster
Data that are grouped close together.
Clustering
A method used to estimate decimal sums and differences by rounding a group of
closely related numbers
to
the same whole number.
Coefficients
The numbers preceding the powers of the variable in a
polynomial. In x -
x + , the coefficients are
and
-. coincides exactly with a point on the other side. A figure is symmetric with respect to a point 0 if for each
point
A on the figure there is a point B on the figure for which 0 is the
midpoint of AB.
Collinear
points Two or more points that
lie on the same line.
Combination
An arrangement of a group of things in which order does not
matter.
Common
denominator A common multiple of the denominators of two or more fractions.
Common
factor A common factor of two counting numbers is a whole number which
Common
multiple A number which is a multiple of each of two or more numbers
Commutative
operation An operation in which a change in order of numbers does not change
the answer
Commutative
property of addition For any numbers a
and b, a + b = b
+ a.
Commutative
property of multiplication For any numbers a
and b, a
x b = b x a.
Commutative
property of multiplication The order in which two numbers are multiplied
does not affect the product
Complementary
angles Two angles whose sum is 90'. Either
angle is said to be the complement of the other
Complementary
angles Two angles whose sum is 900. Either
angle is said to be the complement of the other
Complex
fractions A fraction that has a fraction for its numerator or its
denominator (or both)
Composite
number Any whole number greater than one that has more than two factors.
Conditional
probability The
probability that an event B will occur given that an event A has occurred.
Cone
A closed figure formed by a circular region and a curved
surface that comes to a point.
Congruent
angles Two angles that have the same measure.
Congruent
figures Figures that have the same size and shape.
Congruent
line segments Two or more line segments that are exactly the same length.
Congruent
sides Sides that have the same measure.
Coordinate
The number paired with a point on the number line.
Coordinate
plane A plane marked with
two perpendicular number lines, used to graph ordered pairs of
numbers.
Coordinate
system Two perpendicular lines that intersect at their zero points to form a
coordinate system.
Coplanar
Lying in the same plane.
Corresponding
angles One of four pairs of
angles formed when two lines are cut by a transversal.
Cosine
of an angle If LA
is one of the acute angles in a right triangle, the cosine of LA cos A is the ratio of the
length
of the side adjacent to LA to the
length of the hypotenuse.
Counterexample
An example which shows that a general statement is false (59)
Counting
numbers The set of positive integers which is represented by: C={1,
2, 3,…}
Cross
product If the cross products in a ratio are equal then the ratio forms a
proportion. In the proportion
2/3
= 8/12, the cross products are 2 x 12 and 3 x 8.
Cube
A rectangular solid having all its edges equal
Cup
A unit of capacity equal to 8 fluid ounces.
Curve
A set of points which can be represented on paper by one continuous mark
without retracing
Cylinder
A geometric solid with two parallel bases that are
congruent and one curved surface joining the bases.