Geometry Crossword Puzzle

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Across
  1. 2. Having the same size and shape
  2. 3. lines Lines in a plane that do not intersect
  3. 5. of a circle A=πr^2
  4. 7. The distance around the circle
  5. 9. A line segment with one endpoint at the center of the circle and the other endpoint on the circle, or the length of that segment.
  6. 11. polygon A polygon that does not have all equal sides and all equal angles.
  7. 12. angles Angles in the same plane that have a common vertex and side
Down
  1. 1. angles Two angles with the sum of 180 degrees
  2. 4. A line segment that passes through the center of a circle and has endpoints on the circle, or the length of that segment.
  3. 6. angles A pair of opposite congruent angles formed by intersecting lines
  4. 7. The shape you get when cutting straight across an object
  5. 8. angles Two angles with the sum of 90 degrees
  6. 10. polygon A polygon that with congruent sides and angles