Question

Doar 3!!!!!!!!!!!!!!!!!!

Answer 1

   
[tex]\displaystyle\\ a)~~~m(\sphericalangle 1)=80^o~~si~~m(\sphericalangle 5)=100^o~~\Longrightarrow~~a\cap b \neq \varnothing \\ \text{Explicatie: 1 si 5 sunt unghiuri corespondente inegale}\\\\ b)~~~m(\sphericalangle 2)=100^o~~si~~m(\sphericalangle 5)=100^o~~\Longrightarrow~~a\cap b \neq \varnothing \\ \text{Explicatie: 2 si 1 sunt suplementare, iar 1 si 5 sunt corespondente.}\\ \Longrightarrow~~\text{2 si 5 trebuiau sa fie suplementare.} [/tex]

[tex]\displaystyle\\ c)~~~m(\sphericalangle 5)=90^o~~si~~m(\sphericalangle 1)=90^o ~~\Longrightarrow~~a~||~b \\ \text{Explicatie: 1 si 5 sunt unghiuri corespondente egale} \\\\ d)~~~m(\sphericalangle 6)=120^o~~si~~m(v1)=60^o~~ \Longrightarrow~~a~||~b \\ \text{Explicatie: 6 si 5 sunt unghiuri suplementare.}\\ \Longrightarrow~~ m(\sphericalangle 5) = 180 - 120 = 60^o, \text{ iar 5 si 1 sunt corespondente egale.} [/tex]