A circular race track has inner radius 30 m and outer radius 35 m. The track is the locus of points that are:

  1. more than 35 m from the centre
  2. exactly 35 m from the centre
  3. exactly 30 m from the centre
  4. at least 30 m and at most 35 m from the centre
Answer

D) at least 30 m and at most 35 m from the centre

It is the ring between the two circles. SLO M-09-B-19 · Application

Mathematics MCQ · More Loci MCQs · Practise