1 In the interior of a square we construct the equilateral triangles Prove that the midpoints of the four segments and the midpoints of the eight segments are the 12 vertices of a regular dodecagon.
1 Sa loob ng isang parisukat namin ay makagawa ng equilateral triangles Patunayan na ang midpoints ng apat na segment at ang midpoints ng walong segment ay ang 12 na vertices ng isang regular na dodekegon.