Unit 4 Crossword

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Across
  1. 2. A triangle with exactly two sides of equal length.
  2. 3. A point that divides a segment into two equal parts.
  3. 4. A triangle with all sides of equal length.
  4. 7. A triangle with all angles less than 90°.
  5. 8. A postulate stating that if two angles and a non-included side of one triangle are congruent to those of another, the triangles are congruent.
  6. 9. A postulate stating that if two angles and the included side of one triangle are congruent to those of another, the triangles are congruent.
  7. 11. A triangle with no equal sides.
  8. 12. A postulate stating that if three sides of one triangle are congruent to three sides of another, the triangles are congruent.
  9. 13. A triangle with one angle equal to 90°.
  10. 14. A triangle with one angle greater than 90°.
  11. 16. A pair of opposite angles formed by two intersecting lines, always congruent.
  12. 18. A line or segment that divides another segment or angle into two equal parts.
  13. 19. The sum of the interior angles of a triangle is always 180°.
Down
  1. 1. A property stating that any geometric quantity is congruent to itself.
  2. 5. An exterior angle is equal to the sum of the two non-adjacent interior angles.
  3. 6. If two sides of a triangle are congruent, the angles opposite them are also congruent.
  4. 10. A theorem stating that in right triangles, if the hypotenuse and one leg of one triangle are congruent to those of another, the triangles are congruent.
  5. 15. A postulate stating that if two sides and the included angle of one triangle are congruent to those of another, the triangles are congruent.
  6. 17. A theorem stating that if two triangles are congruent, then all their corresponding parts are congruent.