Geometry 4-1 and 4-2 Vocabulary

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Across
  1. 1. All the points outside a figure
  2. 2. An angle inside a triangle
  3. 3. A triangle with three acute angles
  4. 4. The theorem 4-2-2 states that the acute angles of a right triangle are __________.
  5. 5. A triangle with three congruent angles
  6. 7. A theorem that states that the sum of the angles in a triangle is 180 degrees
  7. 9. A triangle with one right angle
  8. 11. The theorem 4-2-4 states that an exterior angle is equal to the sum of the __________.
  9. 12. A triangle with one obtuse angle
  10. 14. An angle formed by a side of a triangle and an extended adjacent side
  11. 15. A triangle with no congruent sides
Down
  1. 1. A triangle with three congruent sides
  2. 6. An interior angle that is not adjacent to the exterior angle
  3. 8. The theorem 4-2-3 states that the __________ of each angle in an equiangular triangle is 60 degrees
  4. 10. A triangle with two congruent sides
  5. 13. All the points inside a figure