Salut!!!!!
O₁=56%*O₄
O₂=64%*O₄
O₃=68%*O₄
O₄=100%O₄
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O₁+O₂+O₃+O₄=56%O₄+64%O₄+68%O₄+100%O₄
Noi stim ca suma masurilor unghiurilor formate in jurul unui punct este 360°
=>O₁+O₂+O₃+O₄=360°
56%O₄+64%O₄+68%O₄+100%O₄=288%O₄
=> 288%O₄=360 => [tex]\frac{288}{100} *O_{4}=360 => O_{4}=\frac{360*100}{288}=125[/tex]
[tex]O_{1}=\frac{56}{100} *125=\frac{56}{4}*5=14*5=70\\\\O_{2}=\frac{64}{100} *125=\frac{64}{4}*5=16*5=80\\\\O_{3}=\frac{68}{100} *125=\frac{68}{4}*5=17*5=85\\[/tex]
Masurile unghiurilor sunt 70; 80; 85 si 125. Succes!