ch.3 crossword puzzle

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Across
  1. 5. A circle in a polygon that touches each side of the polygon at exactly one point.
  2. 7. the technique of portraying solid objects and spatial relationships on a flat surface.
  3. 8. bisector a line, ray, or segment that passes through the midpoint of a segment.
  4. 9. A circle when it passes through each vertex of the polygon.
  5. 10. all three angles of a triangle are?
  6. 12. The point of concurrency for the three altitudes.
  7. 15. The point of concurrency for the perpendicular bisectors.
  8. 17. line Line on the horizon.
  9. 18. The point of concurrency for the three angle bisectors.
Down
  1. 1. land exactly on top of each other.
  2. 2. of concurrency The point of intersection.
  3. 3. lines lines that lie in the same plane and do not intersect.
  4. 4. A perpendicular segment from a vertex to the opposite side or to a line containing the opposite side.
  5. 6. same distance on both sides.
  6. 7. bisector one bisector that is also perpendicular to the segment.
  7. 11. The segment connecting the vertex of a triangle to the midpoint of its opposite side.
  8. 12. perspective the illusion as if one were looking from a certain point.
  9. 13. perspective If the front surface of a box is not parallel to the picture plane, then you need two vanishing points to show the two front faces receding from view.
  10. 14. point the converging point of two receding parallel lines.
  11. 16. The segment that connects the midpoints of two sides of a triangle.