Math grade 8 can anyone me find the correct answer this question math question ? the building for the headquarters for the united states department of defense is in the shape of a regular polygon with five sides. what is the measure of one of the interior angles of the building?

Answer this two poles, ab and ed, are fixed to the ground with the of ropes ac and ec, as shown: two right triangles abc and edc have a common vertex c. angle abc and edc are right angles. ab is labeled 13 feet, ac is labeled 15 feet, ec is labeled 10 feet, and ed is labeled 4 feet. what is the approximate distance, in feet, between the two poles? 11.14 feet16.65 feet14.35 feet15.59 feet