Final answer:
To find the value of mZe, subtract mZa from 180°. Hence the correct answer is option A
Step-by-step explanation:
To find the value of mZe, we can use the fact that when two angles are supplementary, their sum is 180°. In this case, mZa is given as 155°. So, mZe will be:
mZe = 180° - mZa
mZe = 180° - 155°
mZe = 25°
Therefore, the answer is Option A) 25.