Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

Normal Size Small Size show me how

Normal Size Small Size show me how

# Chapter 10 Vocab

### Multiplication and Other Operations Vocab.

Word | Definition | Example |
---|---|---|

Repeated Addition Property of Multiplication | If n is a positive interger, then nx= x+x+x+.......+x. n addends. | x+x+x+x+x+=5x |

Like terms | These numbers can be simplified into a single number. | 12y+y+2y=15y |

Unlike terms | These numbers cannot be simplified by a single number. | 12x + 6y |

Multiplication Property of Equality | If x=y, then ax=ay. | x=y, x=5, a=2, ay=ax |

Equation of the form ax+b=c | In this equation, the unknown w is multiplied by a number. Then a second number is added. | 3w+5=20 |

Distributive Property of Multiplication over Addition | For any numbers a, b, and x, ax+bx+=(a+b)x and x(a+b)= xa+xb. | 7*9+12*9= 9*(7+12) |

Distributive Property of Multiplication over Subtraction | For any numbers a, b, and x, ax-bx= (a-b)x and x(a-b)= xa-xb. | 7*3.98= 7(4-.02) |

Net | A plane pattern for a 3-dimensional figure. | n/a |

Surface Area | The surface area of a rectangular solid is the sum of the areas of its faces. | n/a |

Numerically equal | When the area and perimeter of a figure are equal. | If the area of a rectangular solid is 6cm*3cm=18cm, and the perimeter is 6cm+3cm+6cm+3cm=18cm |

Acre | A unit of measure that is used to measure land area. | Farms are measured in acres, 640 acres=1 square mile |

Height | The perpendicular distance from any vertex of a triangle to the side opposite that vertex. Also the distance between the bases of the trapezoid. | n/a |

Altitude | The perpendicular segment from a vertex of a triangle to the opposite side of the triangle. Same as height for the trapezoid. | n/a |

Base of a triange | The side of a triangle perpendicular to the altitude. | n/a |

Area Formula for Any Triangle | Let b be the length of a side of a triangle with area A. Let h be the length of a altidute drawn to that side. Then A=1/2 bh. | If base is 20, and height is 15, then A=1/2 20*15=150 square units |

Trapezoid | A quadrilateral with at least one pair of parallel sides. | n/a |

Area Formula for a Trapezoid | Let A be the area of a trapezoid with bases b1 and b2 and height h. Then A=1/2 *h(b1+ b2). | (blank) |

Base of a trapezoid | The parallel sides of a trapezoid. | n/a |

Created by:
Aamir