If you wrap a rubber band around a ball 10cm in diameter ,then lift the band 1cm off the ball all the way arount, the band will be 6.28cm longer. if you wrap a rubber band around the earth(6,378km) and again lift it up 1cm all the way around ,how much longer is the rubber band?

Question 2 (essay worth 10 points) (03.02 mc) in δabc shown below, point a is at (0, 0), point b is at (x2, 0), point c is at (x1, y1), point d is at x sub 1 over 2, y sub 1 over 2, and point e is at the quantity of x sub 1 plus x sub 2 over 2, y sub 1 over 2: triangle abc is shown. point d lies on segment ac and point e lies on segment bc. a segment is drawn between points d and e. point a is at the origin. prove that segment de is parallel to segment ab.