Interoperable interactive geometry for Europe
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Review for "Innenwinkel"

That's only the question.

Global comment:

Review filed on 2010/11/10 22:59 by Christian Mercat.

The angles behave strangely (for the student) when a vertex goes through the opposite side. The angles don't seem to be oriented while their measure can be negative, greater than 360° and so on. Confusing but interesting. Angles never "pop out", they are continuous.
This review is done without a trial in classroom.

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