the fractions and shapes

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Across
  1. 3. only 1 pair of parallel lines
  2. 6. numerator is greater than denominator
  3. 8. all sides are equal,2 pairs of parallel lines and the shape likes parallelogram
  4. 9. all sides are equal
  5. 10. a triangle with two of its three sides the same length
  6. 11. the shape of wheel
  7. 12. the window's shape in our classroom
Down
  1. 1. the form of a fraction in which the numerator and denominator have no factor in common except,like 2/4=1/2
  2. 2. a triangle having a right angle
  3. 4. consisting of a whole number and a proper fraction,for example 1,3/5
  4. 5. a triangle whose sides are all of different lengths
  5. 7. denominator is greater than numerator,like 10/3