Across
- 2. A figure with four sides.
- 4. With a three-dimensional shape, this is the area of all surfaces of the figure.
- 5. In geometry, this is often referring to a shape used as an example.
- 8. A polygon with three sides and three angles.
- 10. When an angle forms from a horizontal line, to the space BELOW it, it is the angle of _______.
- 14. The measured space inside of an enclosed, TWO-dimensional shape.
- 17. Any three-dimensional figure with flat, polygonal bases.
- 18. Any polygon with five-sides.
- 20. An eight-sided polygon.
- 21. Unit of measurement commonly found on a ruler.
- 24. When an angle is below 90 degrees, it is _______.
- 27. A quadrilateral with four equal sides and four equal angles.
- 29. The measured distance between the base and the top of a three-dimensional figure.
- 31. A unit of measurement often reserved for angles.
- 33. When two angles measure up to 90 degrees, they are _______.
- 34. A branch of mathematics which deals with shapes, angles, lines, and measurements.
- 35. Any shape made up of two or more geometric figures.
- 36. A quadrilateral with four right angles and parrallel sides, but an unequal length and width.
- 38. When a triangle meets at a 90 degree angle, it is _______.
- 40. A line, with a singular endpoint, which extends infinitley in one direction.
- 41. A parallelogram with opposite equal acute and obtuse angles, and opposite equal sides.
- 42. A mathematical rule or relationship, usually expressed with symbols.
- 44. A three-dimensional figure with a rectangular or triangular base, and sloping sides that meet at an endpoint.
- 46. A polygon with one-hundred sides.
- 47. An angle starting from the midpoint of a circle.
- 48. The line that passes through a circle, stretching from one end to the other, meeting the circumference. It often measures twice the radius.
Down
- 1. A quadrilateral with two parallel sides.
- 3. The half of a circle's circumference.
- 6. A six-sided prism with equal sides, angles, and vertices.
- 7. A number that is approximatley equal to “3.14159”.
- 9. The circular-area in the mid-section of a sphere; contains the diameter.
- 11. A three-dimensional circle.
- 12. Three-dimensional figure, half of a sphere.
- 13. On the three-dimensional shape, this is the area of a singular side.
- 15. A prism with a circular base.
- 16. A flat surface that extends indefinetly.
- 19. A figure formed by two rays or lines, with a common endpoint.
- 21. A two-dimensional shape without corners or edges.
- 22. A branch of mathematics concerned with angles, and side lengths of triangles.
- 23. The straight line from the center of a circle, to the edge.
- 25. The total measurement of all sides on a two-dimensional shape.
- 26. A line segment starting from one end of a circle to the next, no matter the curve.
- 27. A measured section of a circle.
- 28. A portion of a circle's boundary.
- 30. A three-dimensional shape with a circular base that joins at a single point.
- 32. The midpoint of a circle or sphere.
- 37. When an angle forms from a horizontal line, to the space ABOVE it, it is the angle of _______.
- 39. A quadrilateral with, at minimum, one pair of parallel sides. Sides are known as bases.
- 43. The measured space inside of an enclosed, THREE-dimensional shape.
- 45. A geometric figure; the external form or outline of something.