Types of triangles

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Across
  1. 3. A triangle with one interior angle less than 90 degrees.
  2. 5. A triangle with two sides of equal length.
  3. 6. A triangle with all three sides equal.
Down
  1. 1. A triangle with all three sides of different lengths.
  2. 2. A triangle where one of its interior angle is greater than 90 degrees but less than 180 degrees.
  3. 4. A triangle with one angle that measures exactly 90 degrees.