If mAB = 38 and mCED = 102 mCD 78 degrees.
What is mCD?
To determine the measure of angle mCD remember that angles on a straight line add up to 180 degrees.
Given that mAB = 38 and mCED = 102.
Angle mCED is part of a straight line with angle mCD which tend to means that the sum of their measures is 180 degrees.
To find mCD subtract mCED from 180:
mCD = 180 - 102
mCD = 78
Therefore mCD is 78 degrees.