According to the image,
[tex]\angle red=360\degree+\angle blue[/tex]
On the other hand, the green and blue angles are complementary; therefore,
[tex]\begin{gathered} \angle blue+\angle green=90\degree \\ \angle blue=90\degree-70\degree=20\degree \end{gathered}[/tex]
Thus,
[tex]\Rightarrow\angle red=360\degree+20\degree=380\degree[/tex]
Hence, the answer is 380°, option C.
