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Level 157

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mixed number

the sum of a whole number and a fraction

straight line

a line that has no width and no ends

line segment

a part of a line that consists of two endpoints and all points between the endpoints

intersect

Lines that meet at one point

parallel lines

lines in the same plane that do not intersect

perpendicular

intersecting at or forming right angles

right angles

angles that measure 90 degrees

straight angle

an angle of 180 degrees

acute angle

an angle less than 90 degrees but more than 0 degrees

obtuse angle

an angle between 90 and 180 degrees

polygon

a special kind of geometric figure

side

a segment of a polygon

vertex

in reference to a polygon, a 'corner' of the polygon

quadrilateral

a four-sided polygon

pentagon

a five-sided polygon

hexagon

a six-sided polygon

heptagon

a seven-sided polygon

octagon

a polygon with eight sides

nonagon

a nine-sided polygon

decagon

a polygon with ten sides

undecagon

a polygon with eleven sides

dodecagon

a twelve-sided polygon

concave polygon

a polygon in which one or more interior angle have a measure greater than 180 degrees

convex polygon

a polygon in which all interior angles have a measure less than or equal to 180 degrees

equilateral polygon

a polygon in which all sides are congruent

equiangular polygon

All angles of the polygon have equal measure

tick marks

lines of measurement along the value and category axes.

right triangle

a triangle that has one right angle

acute triangle

a triangle whose interior angles are all acute

obtuse triangle

a triangle that contains an obtuse interior angle

equiangular triangle

a triangle with all angles congruent

isosceles triangle

a triangle with two equal sides

equilateral triangle

a three-sided regular polygon

scalene triangle

a triangle that has no sides of equal length

parallelogram

a quadrilateral with two pairs of parallel sides

trapezoid

a quadrilateral that has exactly tow parallel sides

rectangle

a parallelogram with four right angles

rhombus

a parallelogram with four equal sides

square

a rhombus with four right angle

perimeter

the distance around the outside of a closed, planar geometric figure

radius

the distance between the center of the circle and the rim

diameter

twice the length of the radius

circumference

the distance around a circle. Also called the perimeter of the circle.

irrational number

a decimal number that would require an infinite number of digits

numeral

a signal symbol or a collection of symbols that is used to express the ides of a particular number

natural or counting numbers

the numbers that are used to count objects or things

positive real number

any number that can be used to describe a physical distance greater than zero

positive number

a number greater than zero

negative number

a number less than zero

real number

a number with fraction part (digits after the point), needs floating point representation)

signed numbers

Numbers that are either positive or negative.

number line

a line divided into units of equal length with one point chosen as the origin, or zero point. The numbers to the right of zero are the positive real numbers, and the numbers to…

origin

a beginning point. On a number line or coordinate plane, the number zero is associated with the origin

addend

a number that is added to another number

sum

the result of adding tow or more numbers of quantities

minuend

The first number in a subtraction problem

subtrahend

a number that is subtracted

difference

the answer to a subtraction problem

Product

Is tangible a physical object that can be handled and stored before they are sold. ie. Bread, clothing.

factor

a number that is multiplied by another number to find a product

dividend

a number to be divided by another number

numerator

the number or quantity above the fraction bar in a fraction

denominator

the bottom number in a fraction

quotient

the number obtained by division

unit multipliers

Fractions used to change the units of a number.

whole numbers

Natural numbers and zero

integers

What do we call numbers in other words?

cummutative property for addition

the order in which two real numbers are added does not affect the sum

area

the number of square units needed to cover a flat surface

square unit

a square having sides that measure one unit in length

altitude of a triangle

the height of a triangle

inverse operations

operations that undo each other

like signs

numbers that have the same sign

unlike signs

numbers that have different signs

indeterminate

not capable of being determined

the cumulative property for multiplication

the order in which two real numbers are multiplied does not affect the product

reciprocal

for any nonzero real number, the number in inverted rom

multiplicative inverse

for any nonzero real number, the reciprocal of the number. The product of any nonzero real number and its multiplicative inverse is 1.

symbols of inclusion

parentheses, brackets, braces and bars

positive

the product of 2 negative factors

negative

the product of 3 negative factors

algebraic/mathematical expression

an expression where letters as well as numbers are used

variables/unknowns

letters like x

constant

a memory location whose content cannot change during program execution

scientific notation

a method of writing a number as the product of a number between 1 and 10 with a power of 10

set

a collection of objects. The individual objects that make up a set are called its elements or members

set notation

the method of designating a set by enclosing the numbers of the set within braces

simplify

to break down into the simplest, most easily understood form

simultaneous equations

two or more equations that together specify conditions for two or more variables. The solution of simultaneous equations involves finding values of the variable that satisfy both equations

square root

a number that when multiplied by itself gives a given number

standard form

in reference to a polynomial

statistics

equations, on in which the terms are in descending powers of the variable with all nonzero terms to the left of the equals sign

stem-and-leaf plot

in statistics, a method of displaying data using certain digits as 'stems' and the remaining digit of digits as 'leaves'

subscripted variable

a variable with a subscription a little letter set slightly below and to the right of the variable

subtraction

the inverse operation of addition. If one number or quantity is subtracted from another number or quantity, the result is called the difference