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What method is used to draw an ellipse having a major and minor axis and 2 foci being at a distance apart?

What method is used to draw an ellipse having a major and minor axis and 2 foci being at a distance apart? Correct Answer Intersecting arcs method

This method uses the principle of locating the points on the ellipse such that the sum of this distance from the 2 foci is always constant and is equal to the length of the major axis, which is given.

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