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# 7th Grade EOY Final

Term | Definition |
---|---|

Angle | A figure formed by two rays with a common endpoint called the vertex |

Similar Shapes | Figures with the same shape but not necessarily the same size |

Corresponding Sides | Matching sides of two or more polygons |

Corresponding Angles | Angles in the same relative position in polygons with an equal number of sides |

Ratio | A comparison of two quantities by division (Fraction) |

Scale | Ratio between two sets of measurements |

Polygon | A closed plane figure formed by three or more line segments that intersect only at their endpoints |

Scale Drawing | Drawing that uses a scale to make an object smaller or larger than the real object |

Circumference | The distance around a circle |

Diameter | A line segment that passes through the center of the circle and whose endpoints lie on the circle |

Radius | A line segment with one endpoint at the center of the circle and the other endpoint on the circle |

Pi | The ratio of the circumference to the diameter (C/d), which is the same for all circles |

Area | The number of square units needed to cover a given surface |

Composite figure | A figure that is made up of 2 or more simple geometric shapes |

Volume | the number of cubic units needed to fill a given space (inside) |

Total Surface Area (TSA) | the sum of all the areas of all the faces, or surfaces of a 3 |

"B" | area of the base of a 3 dimensional figure |

Range | the difference in the least and greatest value |

Upper Quartile | the median of the upper half of the data |

Mode | the number that occurs most frequently |

Median | the middle number in an ordered set of data |

Lower Quartile | the median of the lower half of the data |

Interquartile Range (IQR) | the difference between the upper and lower quartiles in a box and whisker plot |

Fixed Expense | an expense that stays the same from month to month |

Variable Expense | an expense that changes from month to month |

Asset | something owned with a positive cash value |

Liability | something owed, a debt with a negative cash value |

Discount | a deduction from the usual cost of something, |

Sales Tax | a tax imposed by state or local government, it is a percent of the total cost of goods and services |

Principal | the initial amount of money borrowed or saved |

Gross Pay | a worker's pay before any amounts are deducted, or taken out |

Net Pay | gross pay minus all deductions |

Taxable Income | the total amount of income minus deductions |

Income Tax | an annual government tax on personal incomes |

Interest | the amount of money charged for borrowing or using money, or the amount of money earned by saving money (a percentage) |

Simple Interest | It is found using the formula I = Prt, where P represents the principal, r the rate of interest, and t the time |

Lateral Surface Area (LSA) | the sum of all the areas of the lateral faces not including the bases |

Indirect Measurement | The technique of using similar figures and proportions to find a measurement |

Net Worth | the difference between your total assets and liabilities; can be positive or negative |

Rebate | a partial refund to someone who has paid too much money for tax, rent, or a utility |