The given objects are tabletop, chessboard, rope, the edge of a table, a blanket, and a table computer.
These objects can be modeled by
• Tabletop: Plane and segments.
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• Chessboard: Plane and segments
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• Rope: Parabola.
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• Edge of a table: Segment.
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• Blanket: Plane Surface and segments.
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• Tablet computer: Plane and Segments.
It's important to say that some of these objects are more complex than a single geometrical object, that's why we used two objects to represent, for example, a tablet computer would be like a plane and segments because those segments will mark the edges and the plane is the inside like the screen.