To solve for the measure of angle \( C \) using the inverse tangent function (also known as arctan), we need a bit more information. Typically, the tangent of angle \( C \) is represented as the ratio of the opposite side to the adjacent side in a right triangle.
If you have the values for the opposite side and the adjacent side, you can find \( C \) using the formula:
\[ C = \tan^{-1}\left(\frac{\text{opposite}}{\text{adjacent}}\right) \]
Please provide the values for the sides or any additional context, and I can assist you in finding the measure of angle \( C \) rounded to the nearest whole degree.