Locus of the point P such that the sum of distances from two fixed points is always constant is __________
(a) an ellipse
(b) a hyperbola
(c) a parabola having those fixed point on its axis
(d) a line perpendicular to line joining those two points and passing through the midpoint of it
I got this question by my school principal while I was bunking the class.
This interesting question is from Loci of Points by Different Methods topic in chapter Loci of Points & Orthographic Projections of Engineering Drawing