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above blue ellipse to navigate.

  Emergent Ellipsoid Geometry  
    DF   =   Vector   =   x2
    AB   =   Major Diameter   =   2x2
    DE   =   Minor Diameter   =   SqRt(x42x3+x2)
    FG   =   wave   =   2(x2x)
    FH   =   hypotenuse   =   2x22x+
    GH   =   radius   =   2x
    HK   =   Vector radius   =   x2
Extend the Minor Diameter, Line DE, as required.
Lines CI and CJ equal Lines AF and BG.
Draw Lines IK and JK such that they equal the Vector.

"CLICK" above images; or,
below blue ellipse to navigate.