Why can't regular pentagons tile a floor by themselves?

  1. their sides are unequal
  2. they have 5 sides
  3. their angles add up to 540^circ
  4. 108^circ does not divide 360^circ exactly
Answer

D) 108^circ does not divide 360^circ exactly

360 div 108 = 3.33ldots, so they leave gaps. SLO M-09-B-18 · Application

Mathematics MCQ · More Polygons, Triangles and Parallelograms MCQs · Practise