Plz help me find the measure of this angle to the nearest degree

Answer:
? = 72.9
Step-by-step explanation:
Since this is a right triangle, we can use trig functions
cos theta = opp / hyp
cos ? = 15/51
Taking the inverse cos
cos ^-1 ( cos ?) = cos^-1 ( 15/51)
? =72.89536
To the nearest tenth
? = 72.9