Title | Description | Thumbnail Image | Curriculum Topics |
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## Isosceles Triangles |
## DescriptionIn this lesson students explore and use the properties of isosceles triangles to solve real world problems. After learning the basics of isosceles triangles they apply what they learn to the structure of the Eiffel Tower. |
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## Why Are Castles So Tall? |
## DescriptionIn this module students explore indirect measurement by seeing how simple angle measure, height measurements, and tangent ratios can be used to calculate distances. The context of castles provides a historically relevant military purpose for the tallness of castles. |
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## Closed Captioned Video: Desmos Geometry Exploration: Angles |
## Closed Captioned Video: Desmos Geometry Exploration: AnglesIn this video tutorial angles are defined. Students are shown how to construct and measure using the Desmos geometry tools. The Desmos geometry tools can be found at www.desmos.com/geometry. . . Related Resources To see additional resources on this topic click on the Related Resources tab above. |
Definition of an Angle | |

## Closed Captioned Video: Desmos Geometry Exploration: Types of Angles I |
## Closed Captioned Video: Desmos Geometry Exploration: Types of Angles IIn this video tutorial different types of angles are defined, including acute, right, supplementary, and straight angles. Students are shown how to construct these types of angles using the Desmos geometry tools. The Desmos geometry tools can be found at www.desmos.com/geometry. . . |
Definition of an Angle | |

## Closed Captioned Video: Desmos Geometry Exploration: Types of Angles II |
## Closed Captioned Video: Desmos Geometry Exploration: Types of Angles IIIn this video tutorial different types of angles are defined, including adjacent angles, complementary angles, supplementary angles, and vertical angles. Students are shown how to construct these types of angles using the Desmos geometry tools. |
Definition of an Angle | |

## Definition--Angle Concepts--Acute Angle |
## Definition--Angle Concepts--Acute AngleThis is a collection of definitions related to angles and related concepts. This includes general definitions for angles, angle measures, and angle properties, as well as specific angle types. Relationships among different types of angles are also defined. |
Definition of an Angle | |

## Definition--Angle Concepts--Adjacent Angles |
## Definition | Angle Concepts | Adjacent AnglesThis is a collection of definitions related to Angles. This includes general definitions for angles, angle measures, and angle properties, as well as specific angle types. Relationships among different types of angles are also defined. |
Definition of an Angle | |

## Definition--Angle Concepts--Alternate Exterior Angles |
## Definition--Angle Concepts--Alternate Exterior AnglesThis is a collection of definitions related to angles and related concepts. This includes general definitions for angles, angle measures, and angle properties, as well as specific angle types. Relationships among different types of angles are also defined. |
Definition of an Angle | |

## Definition--Angle Concepts--Alternate Interior Angles |
## Definition--Angle Concepts--Alternate Interior AnglesThis is a collection of definitions related to angles and related concepts. This includes general definitions for angles, angle measures, and angle properties, as well as specific angle types. Relationships among different types of angles are also defined. |
Definition of an Angle | |

## Definition--Angle Concepts--Angle |
## Definition--Angle Concepts--Angle |
Definition of an Angle | |

## Definition--Angle Concepts--Angle Bisector |
## Definition--Angle Concepts--Angle Bisector |
Definition of an Angle | |

## Definition--Angle Concepts--Angle Measure |
## Definition--Angle Concepts--Angle Measure |
Definition of an Angle | |

## Definition--Angle Concepts--Angle Vertex |
## Definition--Angle Concepts--Angle Vertex |
Definition of an Angle | |

## Definition--Angle Concepts--Central Angle |
## Definition--Angle Concepts--Central Angle |
Definition of an Angle | |

## Definition--Angle Concepts--Circumscribed Angle |
## Definition--Angle Concepts--Circumscribed Angle |
Definition of an Angle | |

## Definition--Angle Concepts--Complementary Angle |
## Definition--Angle Concepts--Complementary Angle |
Definition of an Angle | |

## Definition--Angle Concepts--Congruent Angles |
## Definition--Angle Concepts--Congruent Angles |
Definition of an Angle | |

## Definition--Angle Concepts--Corresponding Angles |
## Definition | Angle Concepts | Corresponding AnglesThis is a collection of definitions related to Angles. This includes general definitions for angles, angle measures, and angle properties, as well as specific angle types. Relationships among different types of angles are also defined. |
Definition of an Angle | |

## Definition--Angle Concepts--Exterior Angle |
## Definition--Angle Concepts--Exterior Angle |
Definition of an Angle | |

## Definition--Angle Concepts--Inscribed Angle |
## Definition--Angle Concepts--Inscribed Angle |
Definition of an Angle | |

## Definition--Angle Concepts--Obtuse Angle |
## Definition--Angle Concepts--Obtuse Angle |
Definition of an Angle | |

## Definition--Angle Concepts--Opposite Interior Angles |
## Definition--Angle Concepts--Opposite Interior Angles |
Definition of an Angle | |

## Definition--Angle Concepts--Reflex Angle |
## Definition--Angle Concepts--Reflex Angle |
Definition of an Angle | |

## Definition--Angle Concepts--Right Angle |
## Definition--Angle Concepts--Right Angle |
Definition of an Angle | |

## Definition--Angle Concepts--Straight Angle |
## Definition--Angle Concepts--Straight Angle |
Definition of an Angle |