7th_Curry

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Across
  1. 3. A location in a plane or in space, having no dimensions.
  2. 7. Proven fact through logic and use of definitions.
  3. 8. Special kind of drawing for which we use only a compass and a straightedge.
  4. 10. An angle whose measure is 90 degrees
  5. 12. angle An angle with a measure between 0° and 90°.
  6. 13. polygon A polygon that has all interior angles less than 180°.
  7. 14. Part of a line, with one endpoint, and extending to infinity in one direction.
  8. 15. Accept fact but is not proven because it is possible.
  9. 17. A three-dimensional figure that has a polygon for its base and whose faces are triangles having a common vertex.
  10. 19. Two lines are perpendicular if the angle between them is 90 degrees.
  11. 20. A point on a line segment that divides the segment into two congruent segments.
  12. 24. The complete distance around a circle or a closed curve.
  13. 26. A flat surface that stretches into infinity
  14. 28. A three-dimensional solid that is bounded by plane polygons.
  15. 32. A pair of angles that add up to 90°.
  16. 33. The distance from the center to a point on a circle; the line segment from the center to a point on a circle.
  17. 34. Pair of adjacent angles formed when two lines intersect.
  18. 36. The side opposite the right angle in a right triangle.
  19. 37. Two angles are supplementary if their sum is 180 degrees.
  20. 38. Three-dimensional geometric shape.
  21. 41. Two points on a line, and all the points between those two points.
  22. 42. Two lines the lie in the same plane.
  23. 44. A three-dimensional figure with all points in space a fixed distance from a given point, called the center.
  24. 46. A flat surface of a three-dimensional figure.
  25. 47. Lines that are not in the same plane and that do not intersect.
Down
  1. 1. Two rays that both start from a common point and go off in exactly opposite directions.
  2. 2. An angle whose measure is greater than 90 degrees.
  3. 4. The sum of the lengths of the sides of a polygon.
  4. 5. Term that is described but is not precisely defined, because it is impossible.
  5. 6. A straight line or a plane that divides a line, a plane, an angle, or a shape into two equal parts.
  6. 9. Lying on the same straight line.
  7. 11. The surface included within a closed figure, measured by the number of square units needed to cover the surface.
  8. 16. Figure formed by two rays sharing a common endpoint.
  9. 18. A pair of opposite angles that is formed by intersecting lines.
  10. 21. A three-dimensional shape with identical parallel bases, all other faces are rectangular.
  11. 22. When two circles have the same radius.
  12. 23. At some point along a scale from one amount, distance, weight etc to another
  13. 25. A set of numbers or letters. ex. (2,5)
  14. 27. The side of a polygon or line segment where two faces of a solid figure meet.
  15. 28. Two lines are parallel if they are in the same plane and never intersect.
  16. 29. A set of angels directly opposite of each other, formed by the intersection of straight lines.
  17. 30. The line segment joining two points on a circle and passing through the center of the circle.
  18. 31. A closed plane figure made up of several line segments that are joined together.
  19. 32. Solid formed by rotating a right triangle around one of its legs.
  20. 35. angles Two angles that share the same vertex and have one side in common between them.
  21. 39. A straight set of points that extends into infinity in both directions.
  22. 40. A unit of measure of an angle.
  23. 42. polygon Polygon that has one or more interior angles greater than 180°.
  24. 43. The point on an angle where the two sides intersect.
  25. 45. Writing reasoned, logical explanations that use definitions, axioms, postulates, and previously proved theorems to arrive at a conclusion about a geometric statement