Definition | PG Term |

y=mx+b | |

An equation that states that two ratios are equal. | |

SSS | |

A triangle with one obtuse angle | |

A triangle with three congruent sides | |

The point where three altitudes intersect in a triangle | |

(y2-y1)/(x2-x1) | |

Two polygons such that their corresponding angles are congruent and the lengths of corresponding sides are proportional | |

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

A triangle with three congruent angles. | |

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

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

Two angles that are formed by parallel lines and a transversal and lie outside the two lines and on opposite sides of the transversal. | |

Lines that do not intersect and are NOT coplanar | |

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

HL | |

A triangle with at least 2 congruent sides and angles. | |

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

Two angles that are formed by parallel lines and a transversal and lie between the parallel lines and on opposite sides of the transversal. | |

Angles that have the same measure. | |

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

A polygon with three sides | |

two angles who sum is 180 degress | |

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

Points that lie in the same plane. | |

Two adjacent angles who are supplementary | |

SAS | |