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Latus Rectum of a Parabola

The latus rectum of a parabola is a line passing through its focus and perpendicular to its axis.
Latus rectum is the line passing through the focus and perpendicular to the axis of a parabola
The length of the latus rectum of a parabola is always equal to four times the distance of focus from the vertex of the parabola. This post explains how to find the length of the latus rectum of a parabola.