拿破仑三角形,包括“外拿破仑三角形”和“内拿破仑三角形”这两类三角形,在三角形ABC三条边的外侧,分别作三个等边三角形,以它们的中心为顶点所构成的三角形,称为“外拿破仑三角形”,若在三角形ABC三条边的内侧,分别作三个等边三角形,那么以它们的中心为顶点也构成的一个三角形,这个三角形 The Napoleon triangles, including the triangles “outside Napoleon” and “napoleon del Napole”, are three equilateral triangles on the outside of the three sides of the triangle ABC. The triangles formed by their centers are called “” “Outside the Napoleon triangle”, if three equilateral triangles are formed on the inner sides of the three sides of the triangle ABC, then a triangle is also formed with their center as the apex.