がいせつえん
外接円
1. circumscribed circle
2. Circumscribed circleIn geometry, the circumscribed circle or circumcircle of a polygon is a circle which passes through all the vertices of the polygon. The center of this circle is called the circumcenter and its radius is called the circumradius. A polygon which has a circumscribed circle is called a cyclic polygon (sometimes a concyclic polygon, because the vertices are concyclic). All regular simple polygons, all triangles and all rectangles are cyclic.
Read “Circumscribed circle” on English Wikipedia
Read “外接円” on Japanese Wikipedia
Read “Circumscribed circle” on DBpedia
Read “Circumscribed circle” on English Wikipedia
Read “外接円” on Japanese Wikipedia
Read “Circumscribed circle” on DBpedia
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