What is the name of an angle that is formed by one side of a triangle and the extension of an adjacent side?

On an airplane there are two seats on the left side and three seats on the right side there are 90 seats o the right side of the plane

With these: 18/36 = 1/? missing number change 1 5/8 to improper fraction. change 19/5 to a mixed number.

Angela rode his bike around a bike trail that was 1/4 of a mile long he rode his bike around the trail 8 * angelo says he wrote a total of 8/4 miles to russell says he's wrong and he actually and says that he actually wrote to my who is corrupt use words and trying to explain how you know.