Across
- 3. A three-dimensional shape with a polygonal base and triangular faces that meet at a vertex.
- 6. The point where the medians of a triangle intersect.
- 7. The longest side of a right triangle, opposite the right angle.
- 13. A triangle with two sides of equal length.
- 14. The measure of the size of a two-dimensional shape.
- 16. An angle that measures exactly 180 degrees.
- 18. An angle that measures less than 90 degrees.
- 20. A part of a circle's circumference.
- 21. A pair of numbers used to locate a point on a coordinate plane.
- 24. A point where two or more edges of a three-dimensional shape meet.
- 26. A flat surface of a three-dimensional shape.
- 29. The distance across a circle, passing through its center.
- 32. A line segment that connects two points on a circle's circumference.
- 34. Having the same size and shape.
- 35. Two adjacent angles that form a straight line and add up to 180 degrees.
- 38. Two angles that share a common side and vertex.
- 39. To divide something into two equal parts.
- 40. A quadrilateral with opposite sides parallel.
- 43. A triangle with one angle greater than 90 degrees.
- 44. Two lines that are not in the same plane and never intersect.
- 45. A quadrilateral with four sides of equal length.
- 48. A trigonometric function that relates the ratio of the opposite side to the hypotenuse of a right triangle.
- 49. A straight line connecting two non-adjacent vertices of a polygon.
- 50. A part of a line that has two endpoints.
- 52. The set of all points in a plane that are the same distance from a fixed point called the center.
- 53. A line with one endpoint that extends infinitely in one direction.
Down
- 1. A tool used to measure angles.
- 2. Two lines that intersect to form a right angle.
- 4. The point where the angle bisectors of a triangle intersect.
- 5. The point where the three altitudes of a triangle intersect.
- 8. The measure of the steepness of a line.
- 9. Two angles that are opposite each other and formed by two intersecting lines.
- 10. A three-dimensional shape with a circular base and a curved surface that tapers to a point.
- 11. The distance from the center of a circle to any point on its circumference.
- 12. A three-dimensional shape with two parallel congruent bases and rectangular or parallelogram-shaped sides.
- 15. Two angles whose sum is 180 degrees.
- 17. A quadrilateral with one pair of opposite sides parallel.
- 19. The measure of the amount of space occupied by a three-dimensional object.
- 22. A trigonometric function that relates the ratio of the adjacent side to the hypotenuse of a right triangle.
- 23. A line that intersects two or more parallel lines.
- 25. A quadrilateral with four right angles.
- 27. A line segment connecting a vertex of a triangle to the midpoint of the opposite side.
- 28. A three-dimensional shape with six square faces of equal size.
- 30. A triangle with three sides of equal length.
- 31. An angle that measures greater than 180 degrees but less than 360 degrees.
- 33. The point where the perpendicular bisectors of a triangle intersect.
- 36. A trigonometric function that relates the ratio of the opposite side to the adjacent side of a right triangle.
- 37. A region bounded by two radii of a circle and the arc between them.
- 41. Two angles whose sum is 90 degrees.
- 42. A three-dimensional shape with all points on its surface equidistant from its center.
- 46. A quadrilateral with two pairs of adjacent sides of equal length.
- 47. A line segment where two faces of a three-dimensional shape meet.
- 51. Having the same shape but not necessarily the same size.