Three Points, Three Edges

Original nine-second explanation. Playback begins only when you choose Play. All meaning is also in the static text.

A triangle from three pointsFirst place A, then B, then C. Connect A to B, B to C and C to A. The three noncollinear points and edges form a triangle.ABC

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  1. Place three different noncollinear points.
  2. Connect A–B, B–C and C–A.
  3. Read the completed triangle; three sides enclose the space.