The Law of Sines appears as follows:
b c a
------- = -------- = --------
sin B sin C sin A
Here there is no mention of side a or of angle A, so focus on
b c
------- = --------
sin B sin C
Plugging in the given values:
26 28
--------- = ------------
sin 29 sin C
Solving for sin C: sin C = 28 sin 29
------------
26
Solve for sin C.
Finally, use the arcsin x function to determine the value of angle C in radians and in degrees.