Plzz anybody plzz answer my most recent question will give brainiest

Why do you need to classify the size of a particle

Given: m∠apc = 27°, m dc = 27° find: m ab

Suppose you live in location a, a part of the united states with a semiarid climate . you travel to location b, which is in a neighboring area . there you would find a humid continental climate. in which direction is location b likely to be , relative to location a? what is an explanation for the difference