9514 1404 393
Answer:
9. rhombus
10. rhombus, rectangle, square
11. rhombus
Step-by-step explanation:
9, 11. Angles are obviously not 90°, so each figure is a rhombus.
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10. Line slopes are 1 or -1, so are perpendicular. Side lengths are all the diagonal of 6 squares, so 6√2.
The figure is a rhombus, rectangle, and square.
