Friday, 28 September 2007

Classwork and Homework on Polygons/Angles

For anyone who missed the last lesson or homework a summary is provided:

The lesson looked at angles within polygons.

We created shapes of x sides, made triangles within them by taking vortices's on the edge and joining it up to all other vertices's, i.e. dividing a quadrilateral into 2 triangles. We could then find the sum of interior angles by saying 2 triangles x 180 degrees = 360 degrees in a quadrilateral.

I will include an example over the weekend.

Homework - This looked at angle properties within a regular Octagon.
The question sheet and solution is attached:

Questions

Solution

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