I'm fairly sure that the answer is an ecosystom.
Answer:
ok
Step-by-step explanation:
Answer:
120
Step-by-step explanation:
you are multiping you are trying to get the number of the base
X = 57. Use the rules for inscribed angles. If that exterior angle is 123, then its supplement is 57. That 57 degree inscribed angle has an intercepted arc that is also the same arc that angle x intercepts. So x has the same measure as the other inscribed angle. Your answer is B.