all sides on a Pentagon are congruent

Question

All sides on a Pentagon are congruent 

 

 

Answer 1

Divide your pentagon into 3 triangles.  Each triangle has 180°, together we have interior angle sum of 540°.  Divide this by 5 you get 108°.  Pentagon has 5 equal sides (congruent) and 5 equal angles (congruent).