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Dear Prof Janet

en.wikipedia.org/wiki/Concentric

Other then Concentric circles, spheres. semi circles , which other circular shapes can be constructed concentric ?.

As a example - Concentric cone, Inverted Concentric cone, concentric parabola, concentric ellipse, concentric hyperbola etc ?.

Also can we also have concentric shapes for Lines shapes viz Kite, Trapezoid, Rhombus, Parallelogram etc

Thanks & Regards,

Prashant S Akerkar

Yes, there are concentric conics. They have the same center or axis of symmetry. Note, however, that neither a parabola nor a hyperbola is circular.

As for line shapes, the Wikipedia page states that regular polygons and polyhedra can be concentric. That would seem to exclude kites, rhombi, etc., but I see no reason that they cannot be concentric, too.

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Comment | Dear Prof Janet Thanks. Thanks & Regards, Prashant S Akerkar |

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