JAMB 1990 · UME · Q45

The locus of a point which moves so that it is equidistant from two intersecting straight lines is the

Worked solution (try it first)
  1. A point the same distance from two intersecting lines sits on a line that splits the angle between them into two equal parts.
  2. So the locus is the bisector of the angles between the two lines, option B.

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