In part A, what is the difference between the 2 shapes?
The first shape is solid. The other shape is flat.
How are these 2 shapes the same?
Answers vary; encourage students to think that the face of the cube is the same shape as the 2D square.
How are the shapes in part B the same? How are they different?
They are both circles. They have different color and size.
What shape can you combine with the square in part C to make a rectangle?
Square or rectangle.
In part D, what shapes were used to make this rectangle?
What closed 2D shape has no vertices?
What 2D shape is closed, has 3 straight sides, and 3 vertices?
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