A | B |

Pythagorean Theorem | a^2 + b^2 = c^2 |

180 degrees | sum of the angles in a triangle |

360 | sum of the angles in a quadrilateral |

opposite/hypotenuse | sine ratio |

adjacent/hypotenuse | cosine ratio |

opposite/adjacent | tangent ratio |

45 degrees | What other acute angle will you find in a right triangle with a 45 degree angle? |

67 degrees | What other acute angle will you find in a right triangle with a 23 degree angle? |

7 degrees | What other acute angle will you find in a right triangle with a 83 degree angle? |

60 degrees | What is the size of an angle in a equilateral triangle? |