A mobile tower must be within 10 km of town A and within 10 km of town B, and AB = 16 km. The possible positions form:

  1. a straight line
  2. a single point
  3. no region at all
  4. the overlap of two circular regions of radius 10 km
Answer

D) the overlap of two circular regions of radius 10 km

16 < 10 + 10, so the two discs overlap; any point in the overlap works. SLO M-09-B-19 · Application

Mathematics MCQ · More Loci MCQs · Practise