2D shapes

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Across
  1. 4. My top and bottom faces look the same
  2. 9. I'm like a square but have two longer sides
  3. 10. I'm a slanted square or rectangle
  4. 11. I have four vertices and two slants as sides that go different ways
Down
  1. 1. I have three vertices and three sides
  2. 2. My name comes from the word five (I have five sides and five vertices)
  3. 3. I have one more side and one more vertice than the pentagon
  4. 5. I have four equal sides and the same number of vertices
  5. 6. I'm the same shape as a die
  6. 7. I have a pointy top and my bottom is sometimes a triangle, and sometimes a square
  7. 8. I have no vertices and am curved all around