a^2+b^2=c^2 is cia ilgis: c=sqrt(a^2+b^2) cia yra karocia matematikos pagrindas. nes toliau: darbas: A = F*s*cos(alfa) kur s - ilgis. --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus