Chapter 6 - 7 Crossword Puzzle

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Across
  1. 4. The arithmetic mean position of all the points in the surface of the figure.
  2. 6. The middle value in a set of data.
  3. 9. A line that bisects another line segment at a right angle, through the intersection point.
  4. 12. A simple quadrilateral with two pairs of parallel sides.
  5. 14. A line segment joining two vertices of a polygon or polyhedron, when those vertices are not on the same edge.
  6. 16. The single point in which the three bisectors of the interior angles of a triangle intersect and which is the center of the inscribed circle.
  7. 17. Having all its sides of the same length.
  8. 18. A line that passes through two very specific points on a triangle: a vertex, or corner of a triangle, and its opposite side at a right, or 90-degree, angle.
Down
  1. 1. An angle bisector or the bisector of an angle is a ray that divides an angle into two equal parts.
  2. 2. The point at which the three perpendicular bisectors of the sides of a triangle intersect and which is the same distance from each of the three vertices of the triangle.
  3. 3. Having equal angles.
  4. 5. A quadrilateral that has one pair of parallel sides.
  5. 7. A quadrilateral with reflection symmetry across a diagonal.
  6. 8. The intersection point of the altitudes drawn from the vertices of the triangle to the opposite sides.
  7. 10. A point which is at the same or equal distance from two given points.
  8. 11. A regular quadrilateral.
  9. 13. A quadrilateral whose four sides all have the same length.
  10. 15. A parallelogram containing a right angle.