Sprinklers
Draw a triangle connecting all 3 vertices.
![Draw a triangle connecting all 3 vertices.](https://stage.geogebra.org/resource/UZRPK8Gq/Wl8cPq1ze3YtZaub/material-UZRPK8Gq.png)
Construct the perpendicular bisectors if you want the circumcenter to put a circle outside the triangle. Construct the angle bisectors if you want the incenter to put a circle inside the triangle.
![Perpendicular bisector, click on the sides.
Angle bisector, click on 3 vertices with the angle you want bisected in the center.](https://stage.geogebra.org/resource/vdqvJ2uM/fNPTyHKPTtdy7tuV/material-vdqvJ2uM.png)
Construct the circle.
![Construct the circle.](https://stage.geogebra.org/resource/rpjRjGGr/YlJcCg2l3DmTsAOL/material-rpjRjGGr.png)