Hello
Assuming that (0) here represents theta.
from the point given, this angle is in the fourth quadrant which makes the valie of sin theta negative.
adjacent = 7
opposite = 1
The hypothenus would be
[tex]\begin{gathered} h^2=1^2+7^2^{} \\ h^2=1+49 \\ h=\sqrt[]{50} \end{gathered}[/tex]