conclusion | | _______ angle of a polygon is an angle created by the side of a polygon and the extension of an adjacent side |

exterior | | if a=b, then b=a |

parallel lines | | ________ angles are two angles whose sum is 90 degrees |

adjacent | | _________ angles are two angles whose sum is 180 degrees |

parallel planes | | planes that never intersect |

congruent | | an eight sided polygon |

congruent segments | | the part of a conditional statement that follows the "if" |

equilateral | | ________ angles are angle pairs that are on the same side of the transversal and in the same position on the lines |

ray | | a=a |

skew lines | | a line segment, line or ray that is perpendicular to a segment at its midpoint |

conditional | | a line that intersects two or more lines |

transversal | | a closed plane figure with atleast three sides |

supplementary | | shows that the conjecture is wrong |

biconditional | | lines that intertersect forming right angles |

diagonal | | A ______ angle is an angle whose measure is 180 degrees |

transitive | | _______ angles are two angles with a common side and vertex |

corresponding | | A _____ angle that is 90 degrees |

coordinate point | | a part of a line consisting of two endpoints |

acute | | a five sided polygon |

coplanar | | lines on the same plane that never intersect |

right | | consist of a x and y |

pentagon | | _______ triangle is a triangle with at least two sides congruent |

perpendicular bisector | | an _______ angle measures less than 90 degrees |

straight | | a conclusion based on inductive reasoning |

segment | | cuts an angle in half |

vertical | | _______ angles are two nonadjacent angles formed by intersecting lines |

octagon | | two lines not on the same plane that never intersect |

perpendicular lines | | the part of a conditional that follows the "then" |

converse | | a polygon with all sides congruent |

scalene | | angles that have the same measure |

polygon | | segments that have the same measure |

obtuse | | lies on the same plane |

alternate interior | | an ________ angle measures more than 90 and less than 180 degrees |

conjecture | | an if-then statement, if p then q |

theorem | | a flat surface that has no thickness |

angle bisector | | a polygon with all angles congruent |

symmetric | | whether a conditinal statement is true or false |

counterexample | | if a=b and b=c, then a=c |

equiangular | | a conjecture that is proven |

regular | | a _______ polygon has all sides and angle congruent |

isosceles | | the process of reasoning logically from given statements to a conclusion |

hypothesis | | a six sided polygon |

reflexive | | a _______ triangle has no sides congruent |

complementary | | _______ _______ are angle pairs that are inside two lines alternating the transversal |

plane | | when a conditional and its converse are true, it can be combined with iff |

deductive reasoning | | points that lie on the same line |

collinear points | | when you switch the hypothesis and conclusion |

truth value | | a line that connects two vertices of a polygon |

hexagon | | is a part of a line that consist of an endpoint and all the points of the line on one side of the endpoint |