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# Mathematical Terms and Definitions

## Search for Terms and Definitions

Here is our glossary of mathematical terms and definitions. If there's a widget sign (), then there's an interactive game or widget on the page.## A

- acute angle ()
- adding fractions
- addition basics
- addition (long addition) ()
- addition rule (probability)
- addition rule (on tree diagrams)
- adjacent
- algebra (expressions)
- algebra (terms)
- algebra (like terms)
- algebra (how to add letters)
- algebra (how to subtract letters)
- algebra (how to multiply letters)
- algebra (how to divide letters)
- algebra (how to add terms)
- algebra (how to subtract terms)
- algebra (how to multiply terms)
- algebra (how to divide terms)
- algebra (how to expand brackets)
- algebra (expanding single brackets using the grid method)
- algebra (how to expand double brackets)
- algebra (expanding double brackets using the grid method)
- algebra (factors)
- algebra (greatest common factor)
- algebra (factoring an expressions)
- algebra (how to collect like terms)
- algebra (how to identify like terms)
- algebra (how to add like terms)
- algebra (how to subtract like terms)
- algebraic fractions
- algebraic fractions (adding algebraic fractions)
- algebraic fractions (subtracting algebraic fractions)
- algebraic fractions (multiplying algebraic fractions)
- algebraic fractions (dividing algebraic fractions)
- algebraic fractions (simplifying algebraic fractions)
- algebraic fractions (power of algebraic fractions)
- algebraic fractions (reciprocal of algebraic fractions)
- algebra (multiplying expressions)
- angles ()
- angles (degrees)
- angles (radians)
- angles (types of) ()
- angles (acute angle) ()
- angles (right angle)
- angles (obtuse angle) ()
- angles (straight angle)
- angles (reflex angle) ()
- angles (full angle)
- angles (complementary angle)
- angles (explementary angles)
- angles (supplementary angle)
- angles (radians)
- angles (finding the sum of the interior angles of a polygon)
- angles (finding the interior angle of a regular polygon)
- angles (exterior angles of a polygon)
- angles (finding the exterior angle of a regular polygon)
- angles (sum of interior and exterior angle equals 180 degrees)
- angular coordinate

Archimedes

(famous mathematician)

- area (of a circle) ()
- area (of a circle using diameter)
- area (of a sector of a circle)
- area (of a sector of a circle in radians)
- area (of an ellipse) ()
- area (of a parallelogram) ()
- area (of a trapezoid) ()
- area (of a triangle) ()
- area (of a triangle using trigonometry)
- area (of a rectangle) ()
- area (of a square) ()
- arithmetic (fundamental theorem of)
- arithmetic mean
- arithmetic with even and odd numbers
- arithmetic with negative numbers
- average (explained) ()
- average (mean) ()
- average (mode) ()
- average (median) ()

## B

- bar chart (explained)
- bar chart (how to create)
- bar chart (how to read from)
- bar charts (types of data)
- bases
- BODMAS

## C

- Cartesian coordinates ()
- Cartesian coordinates (draw a point)
- Cartesian coordinates (read off a point)
- Cartesian cooordinates (converting Cartesian to polar coordinates)
- Cartesian coordinates (coverting to Cartesian from polar)
- circles
- circles (finding the area of)
- circles (circumference of a circle)
- circles (circle theorems)
- circles (circle theorem: tangent radius 90 degrees)
- circles (circle theorem: two radii make an isosceles triangle)
- circles (circle theorem: perpendicular bisector of a chord passes through center)
- circles(circle theorem: angle at center twice at circumference)
- circles (circle theorem: angle in semicircle 90 degrees)
- circles (circle theorem: angles in same segment are equal)
- circles (circle theorem: opposite angles in a cyclic quadrilateral add up to 180 degrees)
- circles (circle theorem: tangents from same point equal)
- circles (circle theorem: angle in alternate segment is equal)
- circles (area of a sector of a cirle)
- circles (area of a sector of a circle in radians)
- circles (length of an arc)
- circles (length of an arc in radians)
- circles (basic equation of a circle)
- circles (equation of a circle)
- circles (equation of a circle in general form)
- circles (finding center and radius from equation)
- circumference
- circumference of a circle
- circumference of a circle (using radius)
- coefficients
- composite numbers ()
- composite function
- composite function (finding a)
- composite function (evaluating a)
- complementary event
- completing the square (introduction)
- completing the square (how to complete the square)
- cone (finding the volume of) ()
- constants
- continuous data
- converting percentages to decimals
- converting percentages to fractions
- converting mixed fractions to improper fractions
- converting improper fractions to mixed fractions
- coordinates (Cartesian)
- coordinates (polar)
- cosine function
- cube (finding the volume of) ()
- cumulative frequency table (explained)
- cumulative frequency table (how to make)
- cumulative grouped frequency table (explained)
- cumulative grouped frequency table (how to make)
- cylinder (finding the volume of) ()

## D

- data (explained)
- data (continuous)
- data (discrete)
- data (qualitative)
- data (quantitative)
- data (types of)
- degrees
- denominator

Descartes, Rene

(famous mathematician)

- dependent event
- dependent event (on tree diagrams)
- diameter
- diameter (finding from the radius)
- diameter (finding from the circumference)
- diameter (finding from the area)
- difference of squares
- discrete data
- distance formula
- dividing fractions
- division basics
- division (long division) ()
- division (long division with remainder)
- division (long division with decimals)

## E

- ellipses
- ellipse (finding the area of)
- engineering notation
- engineering notation (convert to)
- engineering notation (convert number less than 1 to)
- engineering notation (convert from)
- engineering notation (convert from when negative number)
- enlargement
- enlargement (how to enlarge a shape)
- enlargement (fractional scale factor)
- enlargement (negative scale factor)
- enlargement (describing an enlargement)
- enlargement (describing an enlargement with negative scale factor)
- equivalent fractions
- equations (what are equations?)
- equations (linear) (explained) ()
- equations (linear, general form)
- equations (linear, slope point form)
- equations (quadratic) (explained) ()
- equations (simultaneous) (definition)
- equations (simultaneous) (methods for solving)
- equations (simultaneous) (using elimination)
- equations (simultaneous) (using elimination where coefficients differ)
- equations (simultaneous) (using substitution)
- equations (simultaneous) (using a graph)
- equations (solve equations with brackets)
- equations (solve equations with two sets of brackets)
- equilateral triangles

Euclid

(famous mathematician)

- even numbers ()
- exponents
- exponent (exponent of −1)
- exponent (exponent of −1 in algebra)
- exponents (laws of)
- exponents in algebra (laws of)
- exponents (finding negative exponents)
- exponents (finding negative exponents in algebra)
- exponents (finding a power of a power)
- exponents (finding a power of a power in algebra)
- exponents (finding a power of a product)
- exponents (finding a power of a product in algebra)
- exponents (finding a power of a fraction)
- exponents (finding a power of an algebraic fraction)
- expressions

## F

- factor
- factors (finding)
- factors (algebra)
- factors (finding in algebra)
- factor (greatest common)
- famous mathematicians (Euclid)
- famous mathematicians (Pythagoras)
- famous mathematicians (Rene Descartes)
- famous mathematicians (Archimedes)

Fibonacci

(famous mathematician)

- FOIL method
- fractions (overview)
- fractions (adding fractions)
- fractions (equivalent fractions)
- fractions (subtracting fractions)
- fractions (multiplying fractions)
- fractions (dividing fractions)
- fractions (simplifying fractions)
- fractions (converting fractions to a decimal)
- fractions (converting fractions to a decimal)
- fractions (converting fractions to a percentage)
- fractions (converting fractions to a decimal or a percentage)
- fractions (converting mixed fractions to improper fractions)
- fractions (converting improper fractions to mixed fractions)
- fractions (denominator)
- fractions (expressing one number as a fraction of another)
- fractions (finding the fraction of a number)
- fractions (finding the reciprocal of a fraction)
- fractions (proper)
- fractions (improper)
- fractions (mixed)
- fractions (numerator)
- frequency table (explained)
- frequency table (how to make)
- frequency table (finding the mean)
- frequency table (finding the median)
- frequency table (finding the mode)
- frequency table (finding the range)
- function (what is a function?)
- function (evaluating a)
- function (composite function)
- function (inverse function)
- function (finding the inverse of a function)
- function (finding the inverse of a function using a graph)

## G

- geometry
- geometry (polygons)
- geometry (interior angles of polygons)
- geometry (triangles)
- geometry (types of triangles) ()
- geometry (equilateral triangles) ()
- geometry (isosceles triangles) ()
- geometry (scalene triangles) ()
- geometry (interior angles of a triangle)
- geometry (finding a missing angle in a triangle)
- geometry (circles)
- geometry (circumference of a circle)
- geometry (circle theorems)
- geometry (circle theorem: tangent radius 90 degrees)
- geometry (circle theorem: two radii make an isosceles triangle)
- geometry (circle theorem: perpendicular bisector of a chord passes through center)
- geometry (circle theorem: angle at center twice at circumference)
- geometry (circle theorem: angle in semicircle 90 degrees)
- geometry (circle theorem: angles in same segment are equal)
- geometry (circle theorem: opposite angles in a cyclic quadrilateral add up to 180 degrees)
- geometry (circle theorem: tangents from same point equal)
- geometry (circle theorem: angle in alternate segment is equal)
- graphs (the parts of a graph)
- graphs (bar charts and line graphs) ( interactive widget)
- graphs (create a pie chart) ( interactive widget)
- graphs (Cartesian coordinates)
- graphs (polar coordinates)
- graphs (coverting Cartesian coordinates to polar coordinates)
- graphs (coverting polar coordinates to Cartesian coordinates)
- greatest common factor
- greatest common factor (finding the)
- greatest common factor (algebra)
- greatest common factor (finding in algebra)
- gruped frequency table (explained)
- grouped frequency table (finding the mean)
- grouped frequency table (finding the median group)
- grouped frequency table (finding the mode group)
- grouped frequency table (how to make)

## H

## I

- improper fractions
- integers
- interquartile range (explained)
- interquartile range (finding the)
- inverse function
- inverse function (finding the inverse of a function)
- inverse function (finding the inverse of a function using a graph)
- inverse operations
- isosceles triangles
- isosceles triangles (finding a missing angle)

## J

What? Nothing in Mathematics starts with a J.

Unbelievable!

## K

Al-Khwarizmi

(famous mathematician)

## L

- least common multiple
- least common multiple (finding the)
- linear equations ()
- linear equations (general form)
- Linear equations (slope intercept form)
- Linear equations (slope point form)
- linear equations (finding the y-intercept)
- linear equation (between two points)
- linear equations (calculating the slope)
- long addition ()
- long division ()
- long division with remainder
- long division with decimals
- long multiplication ()
- long multiplication with decimals
- long subtraction ()
- lower quartile

## M

- mean (explained)
- mean (finding the)
- median (explained)
- median (finding the)
- midpoint formula ()
- mixed fractions
- mode (explained)
- mode (finding the)
- multiple
- multiple (least common)
- multiplication basics
- multiplication (long multiplication) ()
- multiplication (long multiplication with decimals)
- multiplication rule (probability)
- multiplication rule (on tree diagrams)
- multiplying fractions

## N

Isaac_Newton

(famous mathematician)

- number line
- number line (for addition)
- number line (for subtraction)
- numbers (even numbers) ()
- numbers (odd numbers) ()
- numbers (natural numbers)
- numbers (whole numbers)
- numbers (integers) ()
- numbers (prime numbers) ()
- numbers (square numbers)
- numerator

## O

## P

- parallelograms
- parallelogram (finding the area of)
- pi
- pie chart ( interactive widget)
- percentages ()
- percentage changes
- percentages (converting percentages to decimals)
- percentage (converting percentages to fractions)
- percentages (how to express one number as a percentage of another)
- percentages (finding a percentage change)
- percentages (finding the percentage of a number)
- perfect square trinomials
- place value
- polar coordinates
- polar coordinates (draw a point)
- polar coordinates (read off a point)
- polar coordinates (converting from Cartesian coordinates)
- polar coordinates (coverting to Cartesian from polar)
- polygons (geometry)
- positive numbers
- powers
- powers (base)
- powers (exponent)
- powers (how to multiply powers)
- powers (how to multiply powers in algebra)
- powers (how to divide powers)
- powers (how to divide powers in algebra)
- powers of 10
- prime numbers ()
- probability (what is probability)
- probability (finding a probability)
- probability (addition rule)
- probability (multiplication rule)
- probability (complementary event)
- probability (dependent event)
- probability (independent event)
- probability (mutually exclusive event)
- probability (tree diagram explained)
- probability (how to draw a tree diagram)
- probability (multiplication rule on tree diagrams)
- probability (addition rule on tree diagrams)
- probability (dependent events on tree diagrams)
- proper fractions

Pythagoras

(famous mathematician)

- Pythagoras' theorem ()
- Pythagoras' theorem (finding the hypotenuse)
- Pythagoras' theorem (finding a shorter side)

## Q

- quadratic equations (what are quadratic equations?) ()
- quadratic equations (how to solve)
- quadratic equations (solve using factoring)
- quadratic equations (solve using factoring when a ≠ 1)
- quadratic equations (solve using a graph)
- quadratic equations (solve using the quadratic formula)
- quadratic equations (solve using a difference of squares)
- qualitative data
- quantitative data
- quartile (explained)
- quartile (lower)
- quartile (methods for finding)
- quartile (upper)

## R

- radial coordinate
- radians
- radius
- radius (finding the radius from the area)
- radius (finding the radius from the diameter)
- radius (finding the radius from the circumference)
- range (explained)
- range (finding the)
- reciprocals
- reciprocals (of a fraction)
- reciprocals (of an algebraic fraction)
- rectangles
- rectangle (finding the area of) ()
- reflection
- reflection (common reflections)
- reflection (how to reflect a shape)
- reflection (describing a reflection)
- reflection (reflect a shape in x-axis using cartesian coordinates)
- reflection (reflect a shape in y-axis using cartesian coordinates)
- reflection (reflect a shape in y=x using cartesian coordinates)
- reflection (reflect a shape in y=-x using cartesian coordinates)
- reflex angle ()
- right angle
- right triangle
- right triangle (adjacent)
- right triangle (hypotenuse)
- right triangle (opposite)
- rotation
- rotation (common rotations)
- rotation (how to rotate a shape)
- rotation (describing a rotation)
- rounding numbers ()

## S

- scale factor
- scientific notation
- scientific notation (convert to)
- scientific notation (convert number less than 1 to)
- scientific notation (convert from)
- scientific notation (convert from when negative number)
- simplifying fractions
- simultaneous equations (what are simultaneous equations)
- simultaneous equations (methods for solving)
- simultaneous equations (using elimination)
- simultaneous equations (using elimination where coefficients differ)
- simultaneous equations (using substitution)
- simultaneous equations (using a graph)
- slope
- slope (finding from linear equation)
- slope (finding from linear equation in general form)
- slope (finding from linear equation in slope-point form)
- sine function
- slope (finding the slope of a line) ()
- slope (finding the slope between two points)
- sphere (finding the volume of) ()
- straight angle
- squares
- square numbers
- square root
- square (finding the area of)
- subtraction basics
- subtraction (long subtraction) ()
- subtracting fractions

## T

- terms
- transformations
- translation
- translation (how to translate a shape)
- translation (describing a translation)
- translation (how to translate a shape in Cartesian coordinates)
- trapezoids
- trapezoid (finding the area of) ()
- triangles
- triangle (finding the area of) ()
- triangle (types of) ()
- triangles (equilateral triangles) ()
- triangles (isosceles triangles) ()
- triangles (scalene triangles) ()
- triangles (interior angles of a triangle)
- triangles (finding a missing angle in a triangle)
- triangles (finding a missing angle in an isosceles triangle)
- trigonometry (cosine function) ()
- trigonometry (sine function) ()
- trigonometry (tangent function) ()
- trigonometry (using the sine function to find the opposite)
- trigonometry (using the sine function to find the hypotenuse)
- trigonometry (using the sine function to find the angle)
- trigonometry (using the cosine function to find the adjacent)
- trigonometry (using the cosine function to find the hypotenuse)
- trigonometry (using the cosine function to find the angle)
- trigonometry (using the tangent function to find the opposite)
- trigonometry (using the tangent function to find the adjacent)
- trigonometry (using the tangent function to find the angle)
- trigonometry (finding the area of a triangle using trigonometry)
- types of angles ()
- types of data
- types of triangles ()
- types of whole numbers

## U

## V

## W

## W

## Y

- y-axis (explained)
- y-coordinate (explained)
- y-intercept
- y-intercept (finding the) ()
- y-intercept (finding from linear equation) ()
- y-intercept (finding from linear equation in general form)
- y-intercept (finding from linear equation in slope point form)
- y-intercept (of a function)

## Z

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