CROSSROAD'S CROSSWORD

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Across
  1. 2. An angle whose measure is 90 degrees
  2. 5. The largest side in a right triangle
  3. 6. A quadrilateral with 4 equal sides and angles
Down
  1. 1. A number which produces a specified quantity when multiplied by itself
  2. 3. Shorter sides of a right triangle
  3. 4. A polygon with three sides