*Parabola is an open figure & can be defined as the locus of a point P which moves in a plane so that its distance

*Parabola

Parabola is an open figure & can be defined as the locus of a point P which moves in a plane so that its distance from a fixed point (called Focus, F) bears a constant ratio (called eccentricity, e = 1) to its distance from a fixed straight line (called directrix).