Question:
Define the terms:
(i) Open curve
(ii) Closed curve
(iii) Simple closed curve
Solution:
(i) Open curve: An open curve is a curve where the beginning and end points are different.
Example: Parabola
(ii) Closed Curve: A curve that joins up so there are no end points.
Example: Ellipse.jpg)
(iii) Simple closed curve: A closed curve that does not intersect itself.
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