# math definitions

## Terms

undefined, object

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- like terms
- terms in which all varibles and their corresponding exponents are the same (coeddicents way be defferent)
- mean
- the sum divided by the amount
- set
- collection of objects
- circle
- the sets of points which are equal distant from a given point, on a plane
- parallelogram
- a quadrilateral with opposite sides congruent, opposite sides parallel and opposite angles congruent
- line symmetry
- at least one line can be drawn so that one side is the mirror image of the other
- central angle
- sides of radii vertex is the center
- associative property
- for assition and multiplication (grouping can change)
- obtuse triangle
- triangle with one obtuse angle
- whole numbers
- {0,1,2,3...}
- scalene
- nocongruent sides
- line
- infinitely long straight path, infinitely thine (made up of points)one dimentsion (length)
- chord
- segment with endpoints on the circle
- ray
- part of a line with one endpoints
- vertical angles
- a pair of non-adjacent angles formed bu two intersectin lines
- perpendicular
- two lines intersect at right angles
- regular polygon
- a polygon with congruent sides and angles
- equalateral
- all sides and angles are congruent
- intersection
- points in common "n"
- diameter
- chord which passes through the center
- 1 degree
- 1/360 of a complete rotation
- isosceles trapezoid
- isosceles trapezoid with congruent legs
- mutually exclusive / disjoint
- if two sets have no elements in common (interjection is empty)
- real numbers
- all raational and irrational numbers
- infinite
- never ending
- additive inverse
- the opposite, every real number except zero has a multiplicative inverse (reciprical, fraction)
- translation
- moves each pointof a figure to its image by rotating it about a fixed point in th plane
- point
- exact location, infinately small, zero dimensions represented by a .p "point P"
- supplementary
- a pair of angles that the sum of the measures are 180 degrees
- circumference
- distanve around a circle
- theorem
- a mathematical statement which we prove as true
- parallel lines
- two lines which never intersect and are on the same plane
- objects
- are called elements
- multiplication property
- # times zero equals zero
- transversal
- a line which intersects to given lines in a plane
- distributive proberty
- a(b+c)=ab+ac
- polygon
- a closed figure made up of line segments with nointerior reflex angles
- axiom
- a mathematival statement which we accept as true, without proof
- pi
- the ratio C/D for any circle
- natural numbers
- (counting numbers) {1,2,3...}
- rectangle
- a parallelogram with all congrent angles (all right angles)
- complementary
- a pair of angles that the sum of the measures are 90 degrees
- algebraic expression
- two or more algebraic terms that are connected by +/-
- skew lines
- two lines not on the same plane, which never intersect
- perimeter
- sum of the lengths of the sides
- finite
- has an end
- rational numbers
- any number that can be expressed as a fraction
- corresponding
- a pair of angles that are on the same side of the transversal, one interior ,and oneexterior, and non-adjacent
- range
- the difference between teh greatest and smallest number
- right triangle
- triangle with one right angle
- algebra
- uses varibles to represent unknown numbers
- multiplicative identity
- # times one equals #
- isosceles
- at least two sides and angles
- ratio
- a comparison of two quantities
- mode
- most common (can only be three possibilites)
- adjacent
- two angles which share a common ray, common vertex, and do not overlap
- union
- is when the elements in either or both "U"
- rate
- if two quantities have different unit of measure (not convertable) then the rate of a per b is a/b
- irrational
- nonterminating, non-repeating decimal
- plane
- infinitely long, infinitely wide, a flat surface, two dimentions (length, width)
- collinear
- when two or more points are on the same line
- alternate interior angles
- a pair of angles that are on opposite sides of the transversal, bothe interior, and non-adjacent
- median
- "midle" score when listed in increasing or decreasing order
- intergers
- positive and negative whole mumbers and zero {...-3,-2,-1,0,1,2,3...}
- acute triangle
- triangle with all acute angle
- algebraic term
- any product of numbers and varibles
- intergers
- all whole numbers are their additive inverses
- angle
- two rays with a common endpoint
- radius
- length of the segment from the center to any point on the circle
- line segment
- part of a line, with two endpoints
- proportion
- is an equality of two ratios
- arc
- a part of a circl
- communative property
- for additon and multiplication (order can change)
- square
- a parallelogram with all congruent sides and angles
- rhombus
- a parallelogram with all congruent sides
- absolute value
- of a number is its distance from zero on the number line
- congruent
- angles are equal degrees in measure, line segments are equal in length
- Euclid
- discovered the undefined terms "point, line, plane
- additive identity
- # plus zero equals #
- trapezoid
- a quadrilateral with exacltly one pair of parallel sides