Happy Math

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Across
  1. 2. angle the angle is the smallest one
  2. 4. triangle the triangle such as a tower
  3. 6. angle the angle over the straight angle
  4. 7. angle the angle is the most special one
Down
  1. 1. triangle the triangle that is the messy one
  2. 3. triangle set square
  3. 5. triangle the beautiful one