Based on the information provided, the sum of all the labeled angles is 235° (option b).
To calculate the sum of all the labeled angles we must add the different values of each labeled angle as shown below:
80° + 92° + 40° + 23° = 235°
According to the above, it can be inferred that the correct option is B because the result of the sum of the values coincides with this sum.
Learn more about degrees in: https://brainly.com/question/1217620
#SPJ1