2-22. A line of infinite length tangent to the inner most circle in a nest of four concentric circles has what relationship to the remaining three circles? 1. It is a chord 2. It is a secant 3. It is a sector 4. It is a diameter 2-23. An arc is a part of the curved segment of a circle bound by but not including two radii. 1.    True 2. False 2-24. The Spiral of Archimedes is created by uniformly increasing or decreasing the distance from the center of what geometric element? 1.    Letters 2. Radii 3. Points 4. Locus 2-25. What term refers to the plane surfaces of polyhedra? 1. Sides 2.    Faces 3.    Triangles 4.    Cubes 2-26. What is a parallelepiped? 1. A prism with three parallel lateral faces, oblique truncated bases, and oblique altitudes 2. A solid with opposing bases, one lateral face, and one oblique face 3. A solid with bases composed of equal parallelogram-shaped regular polygons and three or more parallel lateral faces 4. A prism with oblique hexagonal bases 2-27. 2-28. 2-29. 2-30. A generatrix of a right circular cylinder is equal in length to what other cylindrical component? 1.   The base 2.    The directrix 3.    The helix 4.    The altitude What is the difference between a truncated pyramid and a frustum? 1.    The truncated pyramid is oblique and the frustum is parallel to the base 2.    The truncated pyramid is parallel and the frustum is oblique to the base 3.    The truncated pyramid does not have a vertex and the frustum does 4.    The truncated pyramid has an oblique altitude and the altitude of a frustum is perpendicular What is the definition of a parabola? 1.    The intersection of a cone at a lesser angle than the element 2.    The intersection of a cone parallel to the element and oblique to the axis 3.    The intersection of a cone oblique to both the axis and element 4.    The intersection of a cone perpendicular to the axis When you bisect a circular arc, to what distance should you set the compass? 1.   Exactly one half the length of the arc 2.   Twice the length of the arc 3.   Greater than one half the length of the arc 4.   Less than one half the length of the arc 9