Bonisa isisho sikaPythagoras.
Kunobufakazi be-geometry bokuthi uma sikhulisa isikwele se-hypotenuse, silingana nesamba sezikwele zamacala onxantathu. Isamba sezinkundla zezinyawo ezimbili (a no-b) silingana nenkundla ye-hypotenuse (c).  Isitatimende esingokomfanekiso a^{2}+b^{2}=c^{2}