1.   What is a polyhedron?
    A. cone B. cylinder
    C. pyramid D. sphere
    Hint

  2.   What is the locus of all points in a plane that are 3 units from a given point in that plane?
    A. circle of radius 9 units. B. segment of length 3 units.
    C. sphere of radius 3 units. D. circle of radius 3 units.
    Hint

  3.   What is the locus of all points in space that are 6 units from a given point?
    A. circle of radius 36 units.
    B. sphere of radius 36 units.
    C. sphere of radius 6 units.
    D. circle of radius 6 units.
    Hint

  4.   What is the locus of all points in a plane that are 7 units from the line in that plane?
    A. a line parallel to B. a line perpendicular to
    C. a plane parallel to D. two lines parallel to
    Hint

  5.   What is the locus of points in space that are 2 units from a given line segment 7 units long?
    A. A right cylinder with height 7 and radius 2 and hemispheres with radius 2 on each end of the cylinder.
    B. A sphere of radius 7.
    C. A right cylinder of radius 1 and height 7 and hemispheres with radius 1 on each end of the cylinder.
    D. A sphere of radius 3.5.
    Hint



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