6.4.1.1 Understand a circle as the locus of a point equidistant from a fixed point

6.4.1.2 Use intersecting circles to construct triangles and rhombuses from given lengths

6.4.2.1  Be aware that the diagonals of a rhombus bisect one another at right angles

6.4.2.2 Be aware that the diagonals of a rhombus bisect the angles

6.4.2.3* Use the properties of a rhombus to construct a perpendicular bisector of a line segment

6.4.2.4 Use the properties of a rhombus to construct a perpendicular to a given line through a given point

6.4.2.5 Use the properties of a rhombus to construct an angle bisector