 Online Dictionary Allmath Homepage Math Tools Flash Cards!!! Metric Converter Games The Magic Square Reference Pages Math Glossary Math Headlines Multiplication Table Metric Factors Biographies of Math Other Math Links Ask The Experts Visit Dr. Math Visit our Dictionary ALLwords.com About allmath.com Welcome! Who are We? Advertise Contact Us  Click on the letter you want to look in
[A][B][C][D][E][F][G][H][I][J][K][L][M]
[N][O][P][Q][R][S][T][U][V][W][X][Y][Z]

 Parabola set of points equal distance from a focus and a directrix Parallel extending where each matching point on different lines is equidistant Parallelogram A quadrilateral with both pairs of opposite sides parallel to each other. Pentagon A polygon having five angles and five sides. Each angle is 108 degrees. Percent a number out of 100 (%) Example: "50%, 75%" Perimeter The border of a two-demensional figure. Perpendicular at right angles to Pi ratio of the circumference to the diameter of a circle (3.1415926...) Plane Geometry area of geometry dealing two-dimensional figures Point "a place in space with zero dimensions, shape, size, or extension" Polygon A closed figure with three of more straight sides. Positive Number A number that is greater than zero. Example: 1,2,3,4,5,6,7 Prime Factorization Calculation of all prime factors in a number. Example: The prime factors of 84 are 7 x 3 x 2 x 2. Prime Number any integer that cannot be divided by another number evenly except by itself and 1; two is the smallest prime number Example: "2, 3, 5, 7, 11, 13" Prism A solid with bases that are parallel, congruent polygons and sides that are parallelograms. Probability The possibility that an event will occur, as expressed by the ratio of the number of actual occurances to the total of possible occurances. Product the number that results by multiplying two or more numbers together Example: 8 x 8 = 64 64 is the product Proper Factor Any whole-number factor of a number except the number itself. Example: For example, the factors of 10 are 1, 2, 5, and 10. The proper factors of 10 are 1, 2, and 5. Proper Fraction A fraction with a numerator less than the denominator. Example: Proper: 1/2 Improper: 2/1 Pyramid a shape with a polygonal base and triangular sides meeting at a common point (vertex)  