Kalkil enn brans an dibwa triyanger
Silvouple indik dimansion an milimet
X - Longer brans
Y - Oter brans
Z - Epeser travers
W - Larzer travers
S - kantite poto vertikal
P - Struts
N - montre nimero bann parti
Enn brans twatir an dibwa konpoze de bann eleman ki form bann striktir triyanger rizid.
Oter rekomande pou enn brans an dibwa se omwin 20 poursan longer lanpler.
Program-la pou kalkil kantite materyo ki bizin, montre bann desin sa brans-la ek dimansion ki bizin pou bann pies-la.