Function Parallelogram

ABCD is a parallelogram

Format:

ABCD is a parallelogram

Input:

point A -
point B -
point C -
point D -

Output:

boolean - None

Details:

D A B C

Conditional properties that reference this function:

  • if (AB || CD) and (AC || BD), then ABDC is a parallelogram (link)
  • if ABCD is a parallelogram, then AB || DC (link)
  • if ABCD is a parallelogram, then AD || BC (link)
  • if ABCD is a rectangle, then ABCD is a parallelogram (link)
  • if (ABCD is a parallelogram) and (∠ABC is a right angle), then ABCD is a rectangle (link)
  • if (ABCD is a parallelogram) and (∠CDA is a right angle), then ABCD is a rectangle (link)
  • if ABCD is a rhombus, then ABCD is a parallelogram (link)
  • if (ABCD is a parallelogram) and (distance AB = distance BC), then ABCD is a rhombus (link)
  • if (ABCD is a parallelogram) and (distance CD = distance DA), then ABCD is a rhombus (link)
  • if (ABCD is a parallelogram) and (distance DA = distance AB), then ABCD is a rhombus (link)
  • if ABCD is a parallelogram, then quadrilateral ABCD is convex (link)


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