Rectangle E G H J is shown. Point F is the midpoint of side E G and point I is the midpoint of side J H. The length of E F is 3, the length of F G is 3, and the lengths of G H and E J are 4. Through which points should a line of rotation be placed to create a cylinder with a radius of 3 units? E and J F and I J and G G and E

Best answer that i found on yahoo ok   set :   x= length of 2nd piece in cm  x- 3= length of 1st piece in cm  x-4= length of 3rd piece in cm  then since you know they all came from the 20 cm ribbon you add them together and set them equal to 20x+ x-3 +x-4 = 20  3x - 7= 20  3x= 27  x= 9  the shortest piece is the third piece which is x- 4  x-4  9-4 = 5  the length of the smallest piece is 5 cm.  the other lengths are  9 cm  6 cm