1.	What is the locus of all points in space that are 6 units from a given point?
		A.	circle of radius 6 units.
		B.	sphere of radius 6 units.
		C.	sphere of radius 36 units.
		D.	circle of radius 36 units.
		Hint
	2.	Which description corresponds to the boundary below?
		A.	all points in a plane that are 4 units from a given segment in that plane
		B.	all points in space that are 4 units from a given point
		C.	all lines in a plane parallel to a given line in that plane
		D.	all points in a plane that are 4 units from a given point in that plane
		Hint
	3.	What is the locus of all points in space that are equidistant from all the points on a given sphere?
		A.	the sphere itself
		B.	the center of the sphere
		C.	a line through the center of the sphere
		D.	a plane tangent to the sphere
		Hint
	4.	What is the locus of all points in a plane that are 7 units from the line in that plane?
		A.	a plane parallel to	B.	a line parallel to
		C.	two lines parallel to	D.	a line perpendicular to
		Hint
	5.	What is the locus of all points in a plane that are equidistant from two perpendicular lines in that plane?
		A.	a line in a plane parallel to the given plane
		B.	the given perpendicular lines
		C.	the two lines that bisect the right angles formed by the given lines
		D.	the intersection of the given lines
		Hint