In isosceles △abc, m∠acb = 120° and ad is an altitude to leg bc. What is the distance from d to base ab , if cd = 4 cm?.

In 313 ad the roman emperor constantine l published the edict of milan, which established a.) paganism was outlawed in the empire. b.) it was illegal for soldiers to be christians. c.) christians were freed from religious penalties. d.) all roman citizens were required to convert to christianity.