A flagpole casts a shadow that is 25 feet long. At the same time, a woman standing nearby who is 5 feet 6 inches tal casts a shadow that is 31 inches long. How tall is the flagpole to the nearest foot?
The flagpole is about
feet tall

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.

yes, i think so although i am not sure. this is a very strange question.