Geometry Crossword by Jennifer Washington

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Across
  1. 3. point where the three altitudes meet, making them concurrent.
  2. 5. any polygon with an angle measuring more than 180°.
  3. 7. line segment connecting a vertex to the line containing the opposite side and perpendicular to that side.
  4. 8. the point where the three angle bisectors meet. This point is the same distance from each of the three sides of the triangle.
  5. 9. goes through the midpoint of the segment, creating two equal segments.
  6. 12. point where two sides of a polygon meet.
Down
  1. 1. a2 + b2 = c2.
  2. 2. triangle with all three sides unequal.
  3. 4. specifies only location; it has no length, width, or depth.
  4. 6. point where the three medians meet. This point is the center of mass for the triangle
  5. 10. point where the three perpendicular bisectors meet.
  6. 11. has a point on one end, and it extends infinitely in the other direction.