How to get value of angle in degrees ?

Hi, I have the following code: angle_rad1=acos(v*indice1/(d*fs)); %angle in radians

angle1=(angle_rad1*360/pi)-180; %angles in degrees

Now: After putting values of all input arguments angle1 comes out to be: -1.8000e+02 +1.2909e+03i

As this is a complex number in degrees. I want to have some angle in degrees like from -180° to +180° (or 0° to 360°).

I actually want to know which command i can use to get such kind of results from above mentioned complex angle. Thank you