Unit 5 Geometry Vocabulary

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Across
  1. 2. when the distances between points are equal.
  2. 4. is a polygon with three
  3. 8. a triangle that has two sides of equal length.
  4. 9. a triangle that has no equal sides
  5. 10. a triangle that has two sides of equal length
  6. 12. and three vertices.
  7. 15. that point where all the three altitudes of a triangle intersect.
  8. 18. the sum of any two sides of a triangle is greater than or equal to the third side
  9. 19. the point at which the perpendicular bisectors of the sides of a triangle intersect and which is equidistant from the three vertices.
Down
  1. 1. three or more straight lines that all pass through a common point.
  2. 3. states that if a ray bisects an angle of a triangle, then it divides the opposite side into segments that are proportional to the other two sides.
  3. 5. states that if a point is on the perpendicular bisector of a segment, then it is equidistant from the segment's endpoints.
  4. 6. is a line segment joining a vertex to the midpoint of the opposite side, thus bisecting that side.
  5. 7. a line or a segment perpendicular to a segment that passes through the midpoint of the segment
  6. 11. if two sides of two triangles are congruent and the included angle is different, then the angle that is larger is opposite the longer side.
  7. 13. formed by two chords that have a common end point on the circle.
  8. 14. the point where the three medians coincide.
  9. 16. a line or ray that divides an angle into two congruent angles
  10. 17. the perpendicular segment from a vertex of a triangle to the opposite side