cross word

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Across
  1. 2. an angle whose measure is 90 degree
  2. 4. an angle more than 90 degree
  3. 5. an angle less than 90 degree
  4. 6. none of the sides of a triangle are equal
Down
  1. 1. all three sides of a triangle are equal
  2. 3. two sides of a triangle are equal