Joshua and kay are out for a walk on a rainy day. they come to the edge of a large, circular puddle that has a radius of 3 feet. joshua is wearing boots, so he walks straight through the center of the puddle to the other side. kay forgot to wear her boots, so she walks around the outside of the puddle to meet joshua on the other side. how much farther, in feet, did kay walk than joshua? (use 3.14 for π.)