Which 3 go together?

4 shapes. A. 4 sides. 1 pair of parallel sides. 2 right angles. B. kite, 2 pairs of equal length sides. 1 right angle between the two shorter sides. C. 2 vertical sides connected to two curves, one at the top, one at the bottom. D. 6 sided figure, shaped like a sideways V, 2 right angles.

1. Mai has a piece of paper. She can get each of these 2 shapes by folding the paper once along a line of symmetry. What is the shape of the unfolded paper?

   

2. Diego folded a piece of paper once along a line of symmetry and got this right triangle.

   

   Which shapes could the paper have before it was folded? Explain or show your reasoning.

   

   

   

1. Jada folded a piece of paper along a line of symmetry and got this rectangle.

   

   1. What could the paper look like before being folded? Draw one or more sketches.
   2. Write an expression for the perimeter of the unfolded paper.

2. Kiran folded a different piece of paper twice—each time along a line of symmetry. Kiran’s folds created the same rectangle as Jada’s did.

   Show that each expression could represent the perimeter of Kiran’s unfolded paper.