If one angle of a set of alternate interior angles on parallel lines measures 77°, then the other angle also equals 77°

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!! 10 ! a westbound jet leaves central airport traveling 635 miles per hour. at the same time, an eastbound plane departs at 325 miles per hour. in how many hours will the planes be 1900 miles apart?

The measure of one angle of an octagon is two times smaller that of the other seven angles. what is the measure of each angle?