Circumcenter.


Click three non-collinear points to construct the circumcenter of the triangle.

 Centroid.

Click three non-collinear points to construct the centroid of the triangle.

 

 Orthocenter.

Click three non-collinear points to construct the orthocenter of the triangle.

 

 Incenter.

Click three non-collinear points to construct the incenter of the triangle.

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