Across
- 1. The line that a figure can be rotated about so that the image corresponds with the preimage.
- 3. The perpendicular segment from the vertex to the plane containing the base.
- 4. A composition of a translation and a reflection across a line parallel to the translation vector.
- 7. A combination of transformations.
- 9. The set of all points outside a polygon.
- 10. The flat circular surface of the cone.
- 11. In a right triangle, the ratio of the length of the hypotenuse to the length of the side opposite the angle.
- 12. An equation that is true for all values of the variable.
- 13. The curved surface of a cone.
- 16. see reduction.
- 20. A line that divides a plane figure into two congruent reflected halves.
- 25. The angle formed by a horizontal line and a line of sight to a point above.
- 27. The intersection of a three-dimensional figure and a plane.
- 28. Two vectors that have the same magnitude and the same direction.
- 29. A circle that is tangent to each side of a polygon.
- 32. see reflection.
- 34. The region between two concentric circles.
- 36. See enlargement
- 38. A method of adding two vectors by placing the tail of the second vector on the head of the first vector; the su is the vector drawn from the tail of the first vector to the head of the second.
- 39. Half of a sphere.
- 40. One of the two nonparallel sides of the trapezoid.
- 41. see isometry.
- 42. a part of a cone with two circular parallel bases.
- 45. The system of geometry described by Euclid. In particular, this system of geometry satisfies the Parallel Postulate.
- 46. The smallest angle through which a figure with rotational symmetry can be rotated to coincide with itself.
- 47. Coplanar circles with the same center.
- 48. An edge of a prism or pyramid that is not an edge of a base.
Down
- 1. The angle formed by a horizontal line and a line of sight to a point above.
- 2. The orientation of a vector, which is determined by the angle the vector makes with a horizontal line.
- 5. A transformation that does not change the size or shape of a figure.
- 6. A circle on a sphere that divides the sphere into two hemispheres.
- 8. The point around which a figure is rotated.
- 14. A way of drawing three-dimensional figures using isometric dot paper, which has equally spaced dots in a repeating triangular pattern.
- 15. One of a pair of consecutive angles whose common side is a base of the trapezoid.
- 17. The perpendicular distance from the center of a regular polygon to one of its sides.
- 18. A shape that results from a transformation of a figure known as the preimage.
- 19. A dilation that produces an image larger than its preimage.
- 21. A transformation that changes the size of a figure but not its shape.
- 22. The point inside a sphere that is equidistant from every point on the sphere.
- 23. A polyhedron with 12 faces.
- 24. a trapezoid in which the legs are congruent.
- 26. A segment of a secant that lies in the exterior of a circle with one endpoint on the circle.
- 27. A polygon whose sides are all tangent to the same circle.
- 30. A line that is tangent to two circles.
- 31. The form of a vector that lists the vertical and horizontal change from the initial point to the terminal point.
- 33. The starting point of a vector.
- 35. The line that comes closest to all the points in a data set.
- 37. a polyhedron with 20 faces.
- 43. Cosine, The measure of an angle whose cosine ratio is known.
- 44. The horizontal line in a perspective drawing that contains the vanishing point(s).