Posted by **abonumilian** on Thursday, December 9, 2010 at 8:44am.

wie bestimme ich den drehpunkt von zwei dreiecken?

- mathematik -
**Reiny**, Thursday, December 9, 2010 at 8:51am
or

How do I determine the turning point of 2 triangles?

- mathematik -
**MathMate**, Thursday, December 9, 2010 at 10:18am
I believe the question is to find the centre of rotation of two given congruent triangles, ABC, and A'B'C'. The centre of rotation (drehcentrum) Z is the intersection of the perpendicular bisectors of **BB'** and that of **CC'** (both lines not shown in figure).

See figure (for construction of A'B'C':

http://www.blikk.it/angebote/primarmathe/ma2275.htm

(edited: 10:18)

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