- Drag the red points to create your favorite triangle. Press the "Define" button.
- Drag the red point to move the circle. The circle goes through both edges of one side of the triangle.
- What is the locus of the center point of the circle?
- Check "locus" to confirm your hypothesis.
- Change to "2 Circles Mode" . Drag two red points so that two circles overlap each other.
- Did you find how to draw the circumcenter of a triangle?
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