Unit 5 Vocabulary

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Across
  1. 2. The sum of the lengths of any two sides of a triangle must be greater than the length of the third side.
  2. 3. A segment from a vertex to the midpoint of the opposite side of a triangle.
  3. 4. If a point is on the perpendicular bisector of a segment, then it is equidistant from the endpoints of the segment.
  4. 6. The intersection of the three medians.
  5. 11. A segment connecting the midpoints of two sides of a triangle.
  6. 12. The two sides of a right triangle that form the right angle.
  7. 14. intersection of the three angle bisectors of a triangle; it is equidistant from the sides of the triangle.
  8. 15. If a point is on the bisector of an angle, then the point is equidistant from the two sides of the angle.
Down
  1. 1. The theorem used to find a missing side length on a right triangle.
  2. 5. States that a midsegment is parallel to the third side of the triangle and is half its length.
  3. 7. The side opposite the right angle in a right triangle; it is the longest side.
  4. 8. The point of intersection of the three altitudes of a triangle.
  5. 9. If two sides of one triangle are congruent to two sides of another triangle, and the included angle of the first triangle is larger than the included angle of the second, then the third side of the first triangle is longer than the third side of the second triangle (SAS Inequality Theorem).
  6. 10. The intersection of the three perpendicular bisectors of a triangle; it is equidistant from the vertices.
  7. 13. A segment from a vertex perpendicular to the opposite side of a triangle.