<p>Circumcircle of a Triangle<br/>Geometry construction using a compass and straightedge</p><div class="wikimodel-emptyline"></div><div class="wikimodel-emptyline"></div><div class="wikimodel-emptyline"></div><p> <br/>Circumcircle of a Triangle<br/>Geometry construction using a compass and straightedge</p><p>The circumcircle of a triangle is the circle that passes through all three vertices of the triangle. The construction first establishes the circumcenter and then draws the circle. circumcenter of a triangle is the point where the perpendicular bisectors of the sides intersect. This page shows how to construct (draw) the circumcircle of a triangle with compass and straightedge or ruler. This construction assumes you are already familiar with Constructing the Perpendicular Bisector of a Line Segment.</p><p>An excellent tutorial from mathopenref.com</p>