chapter 5 & 6

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Across
  1. 2. segment that connects any two nonconsecutive vertices.
  2. 6. of a triangle:is the point where all three altitudes of the triangle intersect.
  3. 8. is a set of points that satisfies a given point
  4. 9. trapezoid:is a convex quadrilateral with a line of symmetry bisecting one pair of opposite sides.
  5. 10. of s triangle:a segment whose endpoint are a vertex of the triangle and the midpoint of the opposite side.
  6. 12. when a point is the same distance from two or more objects.
  7. 14. a quadrilateral with exactly two pairs of parallel sides.
  8. 16. draw (a figure) within another so that their boundaries touch but do not intersect.
  9. 17. of a polygon:the common endpoint of two sides.
Down
  1. 1. triple:a set of three hori zero whole numbers.
  2. 3. a four-sided plane rectilinear figure with opposite sides parallel.
  3. 4. when 3 or more lines intersect at one point.
  4. 5. of a triangle: the point of concurrency of a medians of a triangle.
  5. 7. of a polygon: each segment forms a polygon.
  6. 11. of a trapezoid: the segment whose endpoints are the midpoint of the legs.
  7. 13. of a triangle: is a line segment through a vertex and perpendicular to (i.e., forming a right angle with) a line containing the base (the side opposite the vertex).
  8. 15. proof: instead of showing that the conclusion to be proved is true, you show that all of the alternatives are false.