1. Look at Part 1. Which figures have pairs of parallel line segments?

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   Figures 1, 2, and 4. 

2. Do you see any perpendicular line segments in the figures? If so, where?

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   Yes. Figure 1: \overline {AB} and \overline {CD} are perpendicular to \overline {AD} and \overline {BC}. Figure 3: \overline {IK} is perpendicular to \overline {KJ}.

3. Which figures are quadrilaterals? How do you know?

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   Figures 1, 2, and 4 because they each have 4 sides. 

4. Which figures are parallelograms? Why?

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   Figures 1 and 2 because they each have 2 pairs of parallel sides. 

5. Remember, a trapezoid has at least 1 pair of parallel sides. Which figures are trapezoids?  

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   Figures 1, 2, and 4. 

6. Which figure(s) are trapezoids but not parallelograms?

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   Figure 4.

7. What kind of shapes are shown in Part 2?

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   A rectangular prism and a rectangular pyramid.

8. What shape is the base of these figures?

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   A rectangle.

9. What are the shapes of the rest of the faces in the rectangular prism and pyramid?

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   Rectangular prism: rectangles; Rectangular pyramid: triangles.

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