What do you notice? What do you wonder?

Your teacher will give you some strips of different lengths and fasteners that you can use to attach the corners of the strips.

1. Use the pieces to build several polygons, including at least one triangle and one quadrilateral.

2. After you finish building several polygons, select one triangle and one quadrilateral that you have made.

   1. Measure all the angles in the two shapes that you selected.

   2. Using these measurements along with the side lengths as marked, draw your triangle and quadrilateral as accurately as possible.

1. Diego built a quadrilateral using side lengths of 4 in, 5 in, 6 in, and 9 in.

   1. Build such a shape.

   2. Is your shape an identical copy of Diego’s shape? Explain your reasoning.

2. Jada built a triangle using side lengths of 4 in, 5 in, and 8 in.

   1. Build such a shape.

   2. Is your shape an identical copy of Jada’s shape? Explain your reasoning.

Han built a polygon using side lengths of 3 in, 4 in, and 9 in.

1. Build such a shape.

2. What do you notice?