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# Test 12 Review

### Area, Surface Area, Volume, Triangles, Angle Pairs

Question | Answer |
---|---|

Area of a Rectangle | A = lw |

Area of a Trapezoid | A = ½ h(b1 + b2) |

Surface Area of a Cylinder | S.A. = 2πr^2 + 2πrh |

Surface Area of a Rectangular Prism | S.A. = 2wl + 2lh + 2wh |

Surface Area of a Triangular Prism | S.A. = 2Abasetriangle + Aface1 + Aface2 + Aface3 |

Perimeter | The distance around the outside of a figure. |

Area | The amount of square units inside of a figure - always units raised to the second power |

Surface Area | The total area of the surface of a three-dimensional object - always units raised to the second power |

Volume | The amount of three dimensional space an object occupies - always units raised to the third power |

The Sum of the Angles of a Triangle | 180 degrees |

Triangle Inequality Theorem | Any two sides of a triangle added together must be greater than the third side. For example, 3, 4, and 5 could be the sides of a triangle because 3 + 4 > 5, 4 + 5 > 3, and 3 + 5 > 4. |

Scalene Triangle | No sides are equal |

Isosceles Triangle | Two sides are equal |

Equilateral Triangle | All sides are equal |

Right Triangle | One 90 degree angle |

Acute Triangle | All angles are less than 90 degrees |

Obtuse Triangle | One angle greater than 90 degrees |

Volume of General Prisms | V = Bh; B stands for area of the base, h stands for height of the prism (distance between two bases) *on reference sheet* |

Volume of Pyramid | V = 1/3Bh; B stands for area of the base, h stands for height of the pyramid *on reference sheet* |

Created by:
Math7