What do a rectangle and a rhombus have in common? Select all that apply. They have four congruent sides.
They always have four right angles.
The opposite sides are parallel.
They are parallelograms.

What class is this? i have no idea and i'm not going to give you the wrong answer. do you have a graph that goes with all the questions

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