Quotes from the NZC http://www.nzmaths.co.nz/elaborations-level-five-geometry-and-measurement http://www.nzmaths.co.nz/resource/angles-parallel-lines-and-polygons
AO1: Deduce the angle properties of intersecting and parallel lines and the angle properties of polygons and apply these properties.
The angle properties of lines are:
1.Vertically opposite angles are equal
2.Adjacent angles add to 180
3.Corresponding angles are equal
4.Interior angles add to 180
5.Alternate angles are equal
Polygons
1.Interior angles of a polygon with n sides are ((n-2) x 180)/n.
2.Exterior angles of any polygon add to 360.

## Level 5 Geometry and Measurement: Shape

Year 10 Classroom teaching on this Topic http://2013maths.wikispaces.com/10MAT+Term+2+Week+5

Year 9 Classroom teaching (assumed prior knowledge) http://2013maths.wikispaces.com/9MAT+Term+2+Week+4

http://www.mathsisfun.com/geometry/parallel-lines.html (Parallel Lines Test)

http://www.mathsisfun.com/geometry/regular-polygons.html (Regular Polygons Test)

Quotes from the NZC http://www.nzmaths.co.nz/elaborations-level-five-geometry-and-measurement

http://www.nzmaths.co.nz/resource/angles-parallel-lines-and-polygons

AO1: Deduce the angle properties of intersecting and parallel lines and the angle properties of polygons and apply these properties.

The angle properties of lines are:

1.Vertically opposite angles are equal

2.Adjacent angles add to 180

3.Corresponding angles are equal

4.Interior angles add to 180

5.Alternate angles are equal

Polygons

1.Interior angles of a polygon with n sides are ((n-2) x 180)/n.

2.Exterior angles of any polygon add to 360.