Respuesta :

In the given figure,

[tex]NP\text{ }\parallel\parallel\text{ QS}[/tex]

Therefore,

[tex]m\angle\text{SRO = m}\angle\text{NOR \_\_\_\_\_\_\_( Alternate Interior angles )}[/tex]

Therefore,

[tex]m\angle\text{SRO = m}\angle\text{NOR }=\text{ 123}[/tex]

Thus the required answer is,

[tex]m\angle\text{NOR }=\text{ 123}[/tex]