# Maths Activities - Angles

Measuring angles An interactive site which provides a protractor for various measuring angles of a shape. Click the arrow to change the shape. |

What's my angle? Introduction explains and demonstrates how to measure angles with a protractor. Explains acute, obtuse and reflex angles. Provides 10 online activities to support the teaching and investigation of angles. |

Types of Angles Learn about acute and obtuse angles. |

Complementary Angles Provides an explanation and practice exercises in 3 different time trial formats. |

Complementary Angles Concentration game to give practice in matching angles a that are complementary. |

Supplementary Angles Provides an explanation and practice exercises in 3 different time trial formats. |

Complementary and Supplementary Angles Provides practice exercises in distinguishing between complementary and supplementary angles. |

Interactive supplementary angles Explore and discover the rule for vertical angles |