The type of triangle that is created by the three cities is an obtuse triangle, because 22 + 51 > 54.
Obtuse triangle is a type of triangle in which any of its angle is greater than 90 degrees, and the sum of the interior angles must by equal to 180 degrees.
Considering length AB and AC = 22 miles + 51 miles = 73 miles
The sum of length AB and AC is greater than length BC, and the opposite angle of side BC is greater than 90 degrees.
Thus, the type of triangle that is created by the three cities is an obtuse triangle, because 22 + 51 > 54.
Learn more about obtuse triangle here: https://brainly.com/question/5023725
#SPJ1