Answer:
The sum of their measures is 180°
Step-by-step explanation:
In the case when the similar circles are intersected to each other having two diameters so the following conditions would be considered as true
1. The arcs that are opposite would be equal
2. The sum of adjacent arcs would be 180 degrees
3 And, the sum of all arcs would be 360 degrees
So according to the given situation, the third option is correct
And, the rest of the options are incorrect