Classifying shapes

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Across
  1. 3. a triangle that has all acute angles and three equal sides
  2. 5. a closed shape that has straight sides
  3. 7. a triangle that has 2 equal sides
  4. 9. a triangle that has no equal side or angles
  5. 10. is a 4 sided shape
Down
  1. 1. is a quadrilateral that only has 1 set of parallel sides.
  2. 2. a rectangle a square and a rhombus can be classified as this
  3. 4. equilateral triangles ALWAYS have these types of angles
  4. 6. a scalene triangle has a least one of these angles
  5. 8. can be classified as a rectangle or a rhombus
  6. 11. a triangle that is made up of an angle that has 90 degrees