Unit 2: Triangles

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Across
  1. 4. If the congruent side is between the congruent angles, we call this what theorem?
  2. 5. Triangle congruence theorem with 3 pairs of congruent sides. (Hint: abbreviation)
  3. 7. The sum of the lengths of the 2 shortest sides of a triangle must be _________ than the third side.
  4. 8. The ____ of the angle measures of a triangle is 180°.
  5. 10. In a triangle, the largest angle is ______ from the longest side.
  6. 12. The angle between the congruent sides and opposite base on an isosceles triangle.
  7. 13. For the SAS congruence theorem, the angle must be __________ the congruent sides.
  8. 16. △BER and △HUG are congruent. If ⦣B is 42°, what other angle is 42°?
  9. 17. We create this when we set two expressions equal, such as sides of an isosceles triangle.
  10. 19. When given three angles, the equation always equals this number. (spell the #)
Down
  1. 1. We label this triangle part with curves. A location where two sides meet.
  2. 2. A way to name congruent triangles based on corresponding parts is called a triangle __________ theorem.
  3. 3. If △BMX is congruent to △RAD, which side would be congruent to side RD.
  4. 6. We label this triangle part with tick marks to show congruence.
  5. 9. Two sides of an isosceles triangle must be ______.
  6. 11. Each angle in an equilateral triangle is ______ degrees. (spell the #)
  7. 14. This is always true about the measures of base angles in an isosceles triangle. They are ______.
  8. 15. Non-congruent side opposite from the vertex in an isosceles triangle.
  9. 18. For the AAS theorem, the corresponding side must ___ be between the congruent angles.