**Task Name : **Golf Course Angles |
**Task Level : **J (Year 9) |

**Semester : **2 |
**Topic :** Angles |
**VC Strand :** Geometric Reasoning |

**Web Address : **http://maths.crusoecollege.vic.edu.au/grJ |

**Equipment Needed : **Stiff card (a roll of corrugated cardboard is usually purchased), rulers, protractors. |

**Victorian Curriculum outcome : **Use the enlargement transformation to explain similarity and develop the conditions for triangles to be similar; Solve problems using ratio and scale factors in similar figures |

**Task description :** Create a scalene triangle golf hole. Create a similar triangle that is 1.5 times bigger. Create a third similar triangle where the longest side is 20cm. |

**Assessment options : **Photographs of Golf Course Holes |

**Teacher notes : **Students tend to make the holes too small to measure accurately: a hole should be around half the size of an A4 sheet of paper. Encourage students to use colour or even little props to make their holes a bit more interesting and creative. |