Hexagon circle) with vertices given by the six intersections of the edges of a triangle and the three lines that are parallel to the edges that pass through its symmedian point. If the successive sides of a cyclic hexagon are "a", "b", "c", "d", "e", "f", then the three main diagonals intersect in a single point if and only if . If, for each side of a cyclic hexagon, the adjacent sides are extended to their intersection, forming a triangle exterior to the given side, then the segments connecting the circumcenters of opposite triangles are concurrent. If a hexagon has vertices
Man with a Movie Camera modern Soviet Union they discover and present in the film. "Man with a Movie Camera" is famous for the range of cinematic techniques Vertov invented, deployed or developed, such as multiple exposure, fast motion, slow motion, freeze frames, match cuts, jump cuts, split screens, Dutch angles, extreme close-ups, tracking shots, reversed footage, stop motion animations and self-reflexive visuals (at one point it features a split-screen tracking shot; the sides have opposite Dutch angles). "Man with a Movie Camera" was largely dismissed upon its initial release; the work's quick-cut editing, self-reflexivity, and emphasis on form over content were all subjects of