Proofs Crossword

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Across
  1. 5. Part that may be congruent WITHIN a triangle
  2. 7. Reason given when triangles share the same side (2 words)
  3. 9. Congruent angles across an X from each other (2 words)
Down
  1. 1. To cut exactly in half
  2. 2. Statements to show a mathematical concept is true
  3. 3. The explanation for choosing a statement
  4. 4. The statement that always is written first in a proof
  5. 6. The point that is the same distance from each endpoint of a segment
  6. 8. Part that may be congruent on the OUTSIDE of a triangle
  7. 10. Step that shows what parts of triangles are congruent