Triangular Crossword Adventure

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Across
  1. 2. space between two sides that meet at a point
  2. 6. line that connects two vertices of a shape
  3. 7. angle greater than 90 degrees
  4. 8. angle that is 90 degrees
  5. 9. triangle with three different sides
Down
  1. 1. triangle with two equal sides
  2. 3. all sides of a shape measure the same
  3. 4. point where two sides come together
  4. 5. angle less than 90 degrees