A | B |

Acute Triangle | A triangle with all three angles less than 90 degrees |

Equialateral triangle | A triangle with all sides the same measurement |

Isosceles triangle | A trangle with two equal sides |

Scalene triangle | A triangle with no equal sides |

Right triangle | A traingle with on angle measuring exactly 90 degrees |

Obtuse trinagle | A triangle with one angle measuring greater than 90 degrees but less tahn 180 degrees |

Triangle | A polygon with three sides |

Degree | Unit used to measure angles |