Triangles

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Across
  1. 1. three sided closed figure
  2. 4. is two figures being equal
  3. 6. side side side
  4. 7. angle side angle
Down
  1. 2. information already provided
  2. 3. space between two rays
  3. 4. corresponding parts of congruent triangles
  4. 5. right angle hypotenuse side