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# Math vocab B

### Math Vocab

word | meaning |
---|---|

Repeated Addition Property of Multiplication | If n is a positive integer, then nx= x+x+.....+x |

like terms | Terms that involve the same variables to the same powers. |

unlike terms | Terms that involve different variables or the same variable with different exponents. |

Multiplication property of Equality | When equal quantities are multiplied by the same number, the resulting quantities are equal. |

Distributive property of Multiplication over addition | For any numbers a,b, and x,ax+ab=(a+b)x and x(a+b)= xa+xb. |

Distributive property of Multiplication over subtraction | For any numbers a,b, and x,ax-ab=(a-b)x and x(a-b)= xa-xb. |

net | A plane pattern for a three-dimensional figure. |

surface area | The sum of the areas of the faces of a solid. |

acre | A unit of area equal to 43,560 square feet. |

height | The perpendicular distance from any vertex of a triangle to the side opposite that vertex. |

altitude | The perpendicular segment from a vertex of a triangle to the opposite side of the triangle. |

base of a triangle | The side of a triangle perpendicular to an altitude. |

Area formula for any triangle | Let b be the length of a side of a triangle with area A. Let h be the lenght of the altitude drawn to that side. Then A= 1\2 bh. |

trapezoid | A quadrilateral with at least one pair of parallel sides. |

Area formula for a trapezoid | Let A be the area of a trapezoid with bases b1, and b2 and height h. Then A=1\2xh(b1+b2). |

height (trapezoid) | The distance between the bases of the trapezoid. |

base (trapezoid | In a trapezoid, one of the parallel sides. |

Created by:
shaanb