Essentials of Geometry

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Across
  1. 1. a polygon such that no line containing a side of the polygon contains a point in the interior of the polygon
  2. 6. a point that divides or bisects a segment into two congruent segments
  3. 8. a ray that divides an angle into two angles that are congruent
  4. 9. statements that are accepted without further justification or explanation
  5. 10. two adjacent angles whose noncommon sides are opposite rays
  6. 11. two points are needed
  7. 12. a polygon that is not a convex .
Down
  1. 2. a polygon with all of its interior angles congruent
  2. 3. angle with the measure between 90 and 180 degrees.
  3. 4. extends indefinitely in all directions
  4. 5. three acute angles
  5. 7. has no dimension , no length , width , or thickness