Definition | PG Term |

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

Points that line in the same plane | |

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

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

A triangle with three congruent angles. | |

Two angles whose sides form two pairs of opposite rays. The angles form an 'X'. | |

a ray that divides an angle into two angles that are congruent. | |

CPCTC | |

Two angles whose sum is 90 degrees. | |

Two lines that intersect to form a right angle. | |

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

Angles that have the same measure. | |

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

A line segment has two... | |

SSS | |

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

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

y=mx+b | |

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. | |

two angles who sum is 180 degress | |

The side opposite the right angle in a right triangle | |

a segment drawn from a vertex perpendicular to the opposite side | |

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

Two adjacent angles who are supplementary | |

A triangle with three congruent sides | |

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

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