Acircle has a central angle measuring 3pi/4 radians that intersects an arc of length 45 in. what is the length of the radius of the circle? round your answer to the nearest tenth. use 3.14 for pi

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