why is triangle stronger than the square?explain why please

Expert Answers
academicsfirst eNotes educator| Certified Educator

Let's use the stability of a three-legged table opposed to the stability of a four-legged table as an example.  A plane is described as three non-collinear points.  Therefore, the three legs lie in only one plane.  The square table has four legs.  Four points determine more than one plane which accounts for less stability.