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15 Cards in this Set
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absolute value

The distance of a number from zero; the positive value of a number.

acute angle

A positive angle measuring less than 90 degrees.

acute triange

A triangle each of whose angles measures less than 90 degrees.

additive identity

A triangle each of whose angles measures less than 90 degrees.

additive inverse

The additive inverse of any number x is the number that gives zero when added to x. The additive inverse of 5 is 5.

adjacent angles

Two angles that share both a side and a vertex.

angle

The union of two rays with a common endpoint, called the vertex.

arc

A portion of the circumference of a circle.

area

The number of square units that covers a shape or figure.

associative property of addition

(a + b) + c = a + (b + c)

associative property of multiplication

(a + b) + c = a + (b + c)

average

A number that represents the characteristics of a data set.

axis of symmetry

A line that passes through a figure in such a way that the part of the figure on one side of the line is a mirror reflection of the part on the other side of the line.

base

The bottom of a plane figure or threedimensional figure.

bisect

To divide into two congruent parts.
