Across
- 2. A set of logical arguments used to deduce or prove a mathematical theorem from a set of axioms.
- 3. Often referred to as the right cone. A cone is a solid formed by rotating a right triangle around one of its legs.
- 6. A line segment that passes through the center of a circle and has its two endpoints on the circle. It also represents the length of such a line segment.
- 7. A polyhedron whose one face is a polygon and the other faces are triangles with one common vertex.
- 8. A closed solid bounded by a surface on which all points are equidistant from a central point called the center.
- 10. The side opposite the right angle in a right triangle.
- 14. The length of the boundary around a shape or a figure.
- 15. The path of a point moving in opposite directions infinitely. A line has neither width nor thickness but length. It is the shortest distance between two points.
- 18. 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.
- 19. A planar surface of a solid figure.
- 21. Two lines that intersect at right angles.
- 22. The distance from the center of a circle to any point on its circumference.
- 23. A pair of angles that add up to 90°.
- 26. non-adjacent angles formed by a pair of intersecting lines
- 28. A geometric object that has no dimension and is used to indicate a location.
- 30. The boundary line of a circle or the length of such a boundary line.
- 34. An angle that is between 90° and 180°.
- 35. Two rays sharing a common endpoint. Angles are typically measured in degrees or radians
- 36. A space figure with two parallel polygonal bases that are the same shape and the same size.
- 37. Two angles that add up to 180°.
- 38. Points or lines that all lie in the same plane.
- 42. An additional geometric figure that is constructed to assist in solving a problem or producing a proof.
- 43. The point halfway between two given points.
- 44. Part of a line between two points called endpoints.
- 46. an assumption used as a basis for mathematical reasoning.
- 47. A general conclusion proposed to be proved upon the basis of certain given hypotheses or assumptions
Down
- 1. Lying on the same straight line.
- 3. A can-shaped solid figure.
- 4. The path of a point moving in opposite directions infinitely. A line has neither width nor thickness but length. It is the shortest distance between two points.
- 5. term In geometry, definitions are formed using known words or terms to describe a new word.
- 8. straight lines that are neither parallel, nor intersecting.
- 9. A unit of measure used to measure the magnitude of an angle, equal in magnitude to 1/360 of a complete revolution.
- 11. two rays that both start from a common point and go off in exactly opposite directions.
- 12. Two angles in a plane which share a common vertex and a common side but do not overlap. Angles 1 and 2 below are adjacent angles
- 13. A flat surface that can extend forever in length and width but has no thickness. The surface of a calm sea and a flat valley are all physical models of a plane.
- 16. The surface included within a closed figure, measured by the number of square units needed to cover the surface.
- 17. An angle that has measure less than 90°.
- 20. two lines intersect, four angles are formed. The angles that are directly opposite to each other are called Opposite Angles.
- 24. A point B that lies on the line connecting two points A and C and has one of the two points on each side of it.
- 25. A solid bounded by at least four polygonal faces.
- 27. Intuitively speaking, curved away from the eye. A concave figure is a set of points some of whose chords include points that are in the set.
- 29. a corner or a point where lines meet
- 31. Intuitively speaking, curved outward or toward the eye. A convex curve is a set of points any of whose chords do not include any point that is not in the set.
- 32. Also called half-line. It is a straight line that extends from a point.
- 33. A closed plane figure bounded by at least three line segments.
- 38. Planar figures or solid shapes that have the same shape and size.
- 39. Two or more straight coplanar lines that do not intersect.
- 40. angle An angle that measures 90° or /2 radians.
- 41. A straight line or a plane that divides a line, a plane, an angle, or a shape into two equal parts.
- 45. A line segment where two faces of a polyhedron meet.