1. **Problem Statement:** Identify which two shapes among A, B, C, D, E, and F are similar based on their geometric properties. 2. **Understanding Similarity:** Two shapes are similar if their corresponding angles are equal and their corresponding sides are proportional. 3. **Step-by-step Analysis:** - Shapes A, C, E, and F are trapezoid-like polygons. - Shapes B and D are different polygon types (pentagon-like and small polygon respectively). 4. **Comparing Shapes:** - Check angles and side ratios of trapezoid-like shapes. - Shapes A and C are both trapezoids located in the top quadrants. - Shapes E and F are trapezoids located in the bottom quadrants. 5. **Using the grid for measurement:** - Measure side lengths of A and C; if ratios match and angles correspond, they are similar. - Measure side lengths of E and F; if ratios match and angles correspond, they are similar. 6. **Conclusion:** - Shapes E and F have the same shape and proportional side lengths, making them similar. **Final answer:** Shapes E and F are similar.