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# Ch. 3 - Geometry 10

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

Transversal | A line that intersects two coplanar lines at two distinct points. |

Alternate Interior Angles | Non-adjacent angles that lie opposite sides of a transversal and between the intersected lines. |

Same-side Interior Angles | Angles that lie on the same side of a transversal and between the intersected lines. |

Corresponding Angles | Angles that lie on the same-side of the transversal in the same relative positions from the intersection points. |

Two-column Proof | A convincing argument using deductive reasoning written with statements and reasons aligned in columns |

Alternate Exterior Angles | Non-adjacent angles that lie on opposite sides of a transversl and outside the intersected lines. |

Same-side Exterior Angles | Angles that lie on the same side of a transversal and outside the intersected lines. |

Flow proof | A convincing argument using deductive reasoning the arrows show the logical connections between statements. |

Acute Triangle | A triangle whose largest angle is less than 90 degrees in size. |

Right Triangle | A triangle with a 90 degree angle. |

Obtuse Triangle | A triangle whose largest angle is more than 90 degrees in size. |

Equiangular Triangle | A figure with all equal angles. |

Equilateral Triangle | A figure with all equal sides. |

Isosceles Triangle | A triangle with two congruent sides. |

Scalene Triangle | A triangle with no congruent sides. |

Exterior Angle of a Polygon | An angle formed by a side and an extension of an adjacent side. |

Remote Interior Angles | Two angles that two nonadjacent interior angles corresponding to each exterior angle of a triangle. |

Polygon | A closed plane figure comprised of sides that intersect at their endpoints no two of which are collinear. |

Convex Polygon | A closed figure with diagonals on the inside. |

Concave Polygon | A closed figure with diagonals containing points on the outside of the polygon. |

Regular Polygon | A polygon that has equal sides and equal angles |

Created by:
mlacelle