Answer:
[tex]tan QSR = tan 30 \\=\frac{1}{\sqrt{3} }[/tex]
Step-by-step explanation:
Given in the attachment is a picture of a triangle with sides QR, RS and QS
The triangle is right angles at R
One exterior angle QST is given as 150 degrees.
Angle QSR is the linear pair of QST
Hence QSR and QST are supplementary
i.e. Angle QSR = 30 degrees
[tex]tan QSR = tan 30 \\=\frac{1}{\sqrt{3} }[/tex]
