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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 triangle
A triangle each of whose angles measures less than 90 degrees
additive identity
number The number zero is called the additive identity because the sum of zero and any is that number.
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 x b) x c = a x (b x 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 three-dimensional figure.
Bisect
To divide into two congruent parts.