Ibyishimo biva muburyo burambuye bwo guturamo, kandi hasi nikimenyetso cyerekana ibikoresho byiza byo munzu.ZR ihitamo ibiti nyabyo kuri wewe ukurikirana ubuzima bwiza.
Ibiti bisanzwe byubatswe ni byiza kandi byiza, kandi ibara ryuzuye.
Igorofa iri muburyo bwa parallelogramu, kandi buri ruhande rugufi rugomba gucibwa kuri 45 °.Pave imaze kurangira, izagaragara muburyo bwa “V”.