POLYGON

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Across
  1. 1. I am a triangle with three axes of symmetry.
  2. 3. Only one pair of opposite sides is parallel.
  3. 4. The two base angles of this triangle are of the same size.
  4. 6. All the sides of ________ triangle are of different length.
  5. 8. I have no axis of symmetry and my opposite sides are parallel and of equal length.
  6. 10. I have 35 diagonals. What am I?
Down
  1. 2. Sum of interior angles of this polygon is 360.
  2. 5. Seven sided polygon.
  3. 7. One of the diagonals is the angle bisector of the angles at the vertices.
  4. 9. I have two axes of symmetry, my opposite sides are parallel and my opposite angles are equal.