It’s the bottom left answer because the angles are opposite of each other. They are also congruent. I hope this helps!
Answer:
1080 degrees
180(n-2) = sum of all interior angles
180(6) = 1080
It is 7 opposite is different and absolute value would be 7 also it is always positive
The angle subtended by two chords is half the enclosed arc measure. If we imagine one of the chords getting shorter and shorter this remains true. In the limit the shrinking chord becomes a tangent, and the angle is still half the arc measure.
Answer: 70 degrees