algebraic expression an expression built up from constants, variables, and a finite number of algebraic operations |

angle the space between two lines or planes that intersect; the inclination of one line to another; measured in degrees or radians |

array an orderly arrangement; an impressive display; an arrangement of aerials spaced to give desired directional characteristics |

axis the center around which something rotates; pivot |

central tendency a central value or a typical value for a probability distribution |

composite made up of distinct parts or elements; compounded |

congruence the quality of agreeing; being suitable and appropriate |

customary system the system of weights and measures based on the foot and pound and second and pint that dates back to colonial America but differs in some respects from the British Imperial System |

customary unit a set of units which can be used to specify anything which can be measured and were historically important, regulated and defined because of trade and internal commerce |

decompose lose a stored charge, magnetic flux, or current; break down |

diagonal straight line connecting any two vertices of a polygon that are not adjacent |

equation making equal; equal division; equality; equilibrium |

exponent one that expounds or interprets; one that speaks for, represents, or advocates |

frequency the number of occurrences within a given time period |

greatest common factor the largest integer that divides without remainder into a set of integers |

integer any of the natural numbers (positive or negative) or zero |

intercept the point at which a line intersects a coordinate axis; cause to stop on the passage |

interior angle the angle inside two adjacent sides of a polygon |

intersecting meet at a point |

inverse opposite; reversed in order, nature, or effect; turned upside down |

least common multiple the smallest multiple that is exactly divisible by every member of a set of numbers |

line of symmetry symmetry with respect to reflection |

metric system a decimal system of weights and measures based on the meter and the kilogram and the second |

metric unit a decimal unit of measurement of the metric system (based on meters and kilograms and seconds) |

ordered pair two numbers written in a certain order, usually written in parentheses like this: (4,5) |

polygon a closed plane figure bounded by straight sides |

prime first in excellence, quality, or value; at the best stage; peak; first in degree or rank; chief |

protractor drafting instrument used to draw or measure angles |

quadrilateral four-sided polygon; having four sides |

rate a quantity or amount or measure considered as a proportion of another quantity or amount or measure |

rotational symmetry an object that looks the same after a certain amount of rotation |

square root a number that when multiplied by itself equals a given number |

standard form scientific notation, where a number is written in two parts: 1)digits with the decimal point placed after the first digit, 2) X10 to a power |

stem-and leaf plot a device for presenting quantitative data in a graphical format, similar to a histogram, to assist in visualizing the shape of a distribution |

symmetry arrangement of parts so that balance is obtained; congruity |

variables symbol representing such a quantity |