Back نصف محيط Arabic Ημιπερίμετρος Greek Semiperímetro Spanish Perimetroerdi Basque Puolipiiri Finnish Կիսապարագիծ Armenian Semiperimeter ID 半周長 Japanese កន្លះបរិមាត្រ Cambodian Полуобем Macedonian
In geometry, the semiperimeter of a polygon is half its perimeter. Although it has such a simple derivation from the perimeter, the semiperimeter appears frequently enough in formulas for triangles and other figures that it is given a separate name. When the semiperimeter occurs as part of a formula, it is typically denoted by the letter s.