Perpendiculars Dropped Any Point in the Equilateral Triangle
Illustration to show the perpendiculars dropped from any point in the equilateral triangle to the three sides is constant, and equal to the altitude.
Keywordspoint, angle, side, triangles, angles, perpendicular, Sides, constant, altitude, equilateral triangle, points, perpendiculars
G.A. Wentworth Plane And Solid Geometry (Boston: Ginn & Company, 1899) 71