If AD is 10 units AB is 8 units AC is 12 is units ED is 4.5 units and if AED is 100 degrees what is the measure of adc?

To find the measure of angle ADC, we can use the Law of Cosines in triangle AED. However, since we only have information about angles and sides in triangle AED, we cannot directly calculate angle ADC without additional information about the position of point C relative to triangle AED. Therefore, we need more details about triangle ABC or the relationship between the angles to find the measure of angle ADC.