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15 Cards in this Set
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 Back
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.
