# 9.9: Angle Measures in Given Triangles

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**Practice**Angle Measures in Given Triangles

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Color | Highlighted Text | Notes | |
---|---|---|---|

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Term | Definition |
---|---|

Acute Triangle |
An acute triangle has three angles that each measure less than 90 degrees. |

Equilateral Triangle |
An equilateral triangle is a triangle in which all three sides are the same length. |

Interior angles |
Interior angles are the angles inside a figure. |

Isosceles Triangle |
An isosceles triangle is a triangle in which exactly two sides are the same length. |

Obtuse Triangle |
An obtuse triangle is a triangle with one angle that is greater than 90 degrees. |

Protractor |
A protractor is a tool used to measure an angle in terms of degrees. |

Right Triangle |
A right triangle is a triangle with one 90 degree angle. |

Scalene Triangle |
A scalene triangle is a triangle in which all three sides are different lengths. |

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Description

Discover how to find missing angles in a triangle and how to draw specific types of triangles.

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Difficulty Level:

At Grade
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Date Created:

Oct 29, 2012
Last Modified:

Mar 17, 2017
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