Definition | PG Term |

Lines that do not intersect and are NOT coplanar | |

A segment drawn from the vertex of a triangle to the midpoint of the opposite side | |

An angle whose measurement is between 0 and 90. | |

The point where three angle bisectors intersect in a triangle | |

A line drawn perpendicular to a side through its midpoint. | |

Two angles that share a common vertex and side. | |

Two lines that do not intersect and are coplanar. | |

SAS | |

A line segment has two... | |

The side of a right triangle that is opposite the right angle. | |

Two adjacent angles who are supplementary | |

Two angles whose sum is 90 degrees. | |

two angles that are formed by parallel lines and a transversal and occupy corresponding positions | |

An angle that measures 180 degrees. | |

A triangle with three congruent angles. | |

A point that divides, or bisects, a segment into two congruent segments. | |

AAS | |

A triangle with one obtuse angle | |

y-y1=m(x-x1) | |

The point where three perpendicular bisectors intersect in a triangle. | |

An angle whose measure is equal to 90 degrees | |

A segment that is drawn from the center of a circle to the circle. | |

A triangle with three congruent sides | |

SSS | |

An angle whose measure is between 90 and 180 degrees. | |

Two angles formed by two parallel lines and a transversal that lie on the interior of the parallel lines and on the same side of the transversal. | |

The point where three altitudes intersect in a triangle | |