Question

sunt 4 unghiuri in jurul unui punct afla masurile unghiurilor m(aob)=xgrade +15grade m(cod)=10xgrade 15grade m(boc)3xgrade m(doa)x0grade+30grade

Answer 1

m(<AOB)+m(<BOC)+m(<COD)+m(<DOA)=360°
x°+15°+3x°+10x°+15°+x°+30°=360°
15x°=360°-60°
15x°=300°
x°=20°
m(<AOB)=35°
m(<BOC)=60°
m(<COD)=215°
m(<DOA)=50°