A triangle drawn on a map has sides of lengths 9 cm, 11cm, and 13cm. The shortest of the corresponding real-life distances is 125km. Find the longest of the real-life distances. Round your answer to the nearest tenth of a kilometer.

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.

i have no clue what you just said. write a question in english?