Geometry

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Across
  1. 7. An angle that measures less than ninety degrees.
  2. 9. The side opposite the right angle in a right triangle.
  3. 10. A flat surface that extends forever in all directions.
  4. 12. A straight path that extends forever in both directions.
  5. 13. An angle that measures exactly ninety degrees.
  6. 15. A polygon with six sides.
  7. 16. A triangle with at least two equal sides.
  8. 18. A part of a line with two endpoints.
  9. 21. Two angles whose measures sum to one hundred eighty degrees.
  10. 22. The amount of space inside a two-dimensional shape.
  11. 23. The common endpoint of an angle or a corner of a polygon.
  12. 28. The distance from the center of a circle to any point on its edge.
  13. 29. A polygon with four sides.
  14. 30. A polygon with five sides.
  15. 31. Lines that intersect to form right angles.
  16. 32. A line that intersects two or more other lines.
Down
  1. 1. Two angles whose measures sum to ninety degrees.
  2. 2. A polygon with three sides.
  3. 3. A triangle with no equal sides.
  4. 4. Lines in the same plane that never intersect.
  5. 5. The distance around the outside of a circle.
  6. 6. A closed plane figure made of three or more line segments.
  7. 8. An angle that measures exactly one hundred eighty degrees.
  8. 10. The distance around the outside of a shape.
  9. 11. Formed by two rays with a common endpoint.
  10. 14. Figures that have the same shape and size.
  11. 17. A polygon with eight sides.
  12. 19. The distance across a circle through its center.
  13. 20. Opposite angles formed by intersecting lines that are always congruent.
  14. 22. Two angles that share a common vertex and side but no interior points.
  15. 24. A triangle with three equal sides.
  16. 25. A location in space with no dimensions.
  17. 26. An angle that measures more than ninety but less than one hundred eighty degrees.
  18. 27. Figures that have the same shape but different sizes.
  19. 33. A part of a line that starts at one point and goes forever in one direction.