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December 18, 2014

December 18, 2014

Posted by **Audrey** on Thursday, October 25, 2007 at 9:17pm.

I think it has something to do with triangles, but I can't quite find the relation.

I know this is probably really confusing, but I tried drawing a picture of it on paint and when I went to post it, it said I cn't post websites; please help me, I really don't get it.

- maths -
**Reiny**, Thursday, October 25, 2007 at 10:44pmIf a quadrilateral inside a circle has its 4 vertices on the same circle, then it is a cyclic quadrilateral.

One of the properties is that opposite angles add up to 180º

I think this is the relationship you are looking for according to your description.

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