Triangles

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Across
  1. 1. one angles is 90°. The other two angles are acute.
  2. 4. all sides are the same length.
  3. 5. all three angles are less than 90°.
  4. 6. all sides are different length.
Down
  1. 2. two sides are the same length.
  2. 3. one angles is greater than 90° and the other two angles are acute.