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The figure represents the intersection of two __________

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in Civil Engineering Drawing by (128k points)
The figure represents the intersection of two __________

(a) concentric spheres

(b) swimming flotation

(c) tori

(d) rings

I had been asked this question in an interview.

Question is from Intersection of Surfaces in section Development of Surfaces, Isometric Projections, Perspective Projections & Transformation of Projections of Civil Engineering Drawing

1 Answer

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Best answer
Correct choice is (c) tori

Explanation: The intersection curve of two polyhedrons is a polygon i.e. tori. The display of a parametrically defined surface is usually done by mapping a rectangular net into 3-space. The spatial quadrangles are nearly flat. So, for the intersection of two parametrically defined surfaces, the algorithm for the intersection of two polyhedrons can be used.

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