Across
- 3. closed plane figure for which all sides are line segments.
- 4. rays Two rays with a common endpoint that point in opposite directions and form a straight line.
- 10. The geometric figure formed at the intersection of two distinct lines.
- 11. Lying in the same plane.
- 12. A three dimensional solid consisting of all points equidistant from a given point.
- 13. The distance around the outside of a plane figure.
- 14. a complete arc or the distance around the the outside of a circle.
- 16. A line segment between two points on the circle or sphere which passes through the center.
- 17. A statement accepted as true without proof.
- 19. The side opposite the right angle in a right triangle.
- 20. Also called non-coplanar lines. They are straight lines that are neither parallel, nor intersecting. They lie on different planes.
- 21. An acute angle is an angle to which is less than 90 degrees
- 22. A solid with no curved surfaces or edges.
- 25. A line segment, line, or plane that divides a geometric figure into two congruent halves.
- 26. A pair of numbers that describe the position of a point on a coordinate plane by using the horizontal and vertical distances from the two reference axes.
- 29. angles Two angles in a plane which share a common vertex and a common side but do not overlap.
- 31. Two angles that add up to 180°.
- 35. A corner point of a geometric figure.
- 36. A part of a line starting at a particular point and extending infinitely in one direction.
- 37. a three dimensional figure with a single base tapering to an apex. The base can be any simple closed curve. Often the word cone refers to a right circular cone.
- 39. Lying on the same line.
- 40. Two lines (lying in the same plane) are parallel if they never intersect... This means that the two lines are always the same distance apart.
- 42. A 90° angle.
- 44. angle An angle that has measure more than 90° and less than 180°.
- 45. A unit of angle measure equal to of a complete revolution. There are 360 degrees in a circle. Degrees are indicated by the ° symbol, so 35° means 35 degrees.
Down
- 1. A three-dimensional geometric figure with parallel congruent bases. The bases can be shaped like any closed plane figure (not necessarily a circle) and must be oriented identically.
- 2. set of logical arguments used to deduce or prove a mathematical theorem from a set of axioms.
- 5. A point on a line segment that is in between two other points which are on the same line.
- 6. A flat surface extending in all directions.
- 7. pair- A pair of adjacent angles formed by intersecting lines.
- 8. The point halfway between two given points.
- 9. A planar surface of a solid figure
- 11. Exactly equal in size and shape.
- 13. At a 90° angle and sloped at a negative reciprocal
- 15. A pair of angles that add up to 90°
- 18. The surface included within a closed figure, measured by the number of square units needed to cover the surface.
- 21. Two rays sharing a common endpoint. Angles are typically measured in degrees or radians.
- 23. A line segment between the center and a point on the circle or sphere.
- 24. A solid with parallel congruent bases which are both polygons.
- 27. An additional geometric figure that is built to assist in solving a problem or producing a proof
- 28. polygon a set of points some of whose chords include points that are in the set.
- 30. polygon A geometric figure with no indentations.
- 32. term a term or word that doesn’t require further explanation or description.
- 33. A polyhedron whose one face is a polygon and the other faces are triangles with one common vertex.
- 34. A line segment where two faces of a polyhedron meet.
- 38. angles angles opposite one another at the intersection of two lines.
- 41. segment All points between two given points (including the given points themselves).
- 43. An assertion that can be proved true using the rules of logic.