Chapter 4 Vocab

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Across
  1. 6. no congruent sides
  2. 7. the third side of an isosceles triangle
  3. 9. If two angles and the included side of one triangle are congruent to two angles and the included side of a second triangle, then the tow triangles are congruent
  4. 10. the side opposite the right angle
  5. 12. each of the three points joining the sides of a triangle
  6. 14. A figure formed by three segments joining three noncollinear points
  7. 15. 1 obtuse angle
  8. 17. 3 congruent angles
  9. 19. the three original angles of a triangle
  10. 21. 3 congruent sides
  11. 22. in a right triangle the sides that form the right angle
  12. 23. two sides sharing a common vertex
Down
  1. 1. If two angles and a nonincluded side of one triangle are congruent to two angles and the corresponding nonincluded side of a second triangle, then the two triangles are congruent.
  2. 2. correspondence between corresponding angles and sides are congruent in a triangle
  3. 3. If two sides and the included angle of one triangle are congruent to two sides and the included angle of a second triangle, then the two triangles are congruent
  4. 4. 2 congruent sides
  5. 5. the sum of the measure of the interior angles of a triangle is 180
  6. 8. if three sides of one triangle are congruent to the three sides of a second triangle, then the two triangles are congruent
  7. 11. the angles that are adjacent to the interior angles
  8. 13. the measure of an exterior angle of a triagle is equal to the sum of the measure of the two nonadjacent interior angles
  9. 16. in an isosceles triangle the two congruent sides
  10. 18. 1 right angle
  11. 20. 3 acute angles