Could I get a detailed explanation as why each answer was chosen.

Complete each of the following statements with one of three terms, either "must", "can" or "cannot", and briefly explain each. 1. Circles with different circumferences have the same area. 2. Circles with different areas have the same circumference. 3. Rectangles with different perimeters have the same area. 4. Rectangles with different areas have the same perimeter. 5. Ovals with different length boundaries have the same area. 6. Ovals with different areas have the same length boundary. 7. Triangles with different length boundaries have the same area. 8. Triangles with different areas have the same length boundary. 9. Equilateral triangles with different length boundaries have the same area. have the same 10. Equilateral triangles with different areas length boundary