Dadas as retas r,s,t e a marque as alternativas INCORRETAS: *
a) As retas s e t são coincidentes.
b) As retas s e a são estritamente paralelas.
c) As retas r e s são concorrentes perpendiculares.
d) As retas t e a são paralelas
![Dadas As Retas Rst E A Marque As Alternativas INCORRETAS A As Retas S E T São Coincidentesb As Retas S E A São Estritamente Paralelasc As Retas R E S São Concor class=](https://pt-static.z-dn.net/files/d33/75f3bf11a7ffa30555c44b43e081544c.jpg)