Which of the following statements is false?
<spanclass=′latex−bold′>(A)</span>All equilateral triangles are congruent to each other.<spanclass=′latex−bold′>(B)</span>All equilateral triangles are convex.<spanclass=′latex−bold′>(C)</span>All equilateral triangles are equilangular.<spanclass=′latex−bold′>(D)</span>All equilateral triangles are regular polygons.<spanclass=′latex−bold′>(E)</span>All equilateral triangles are similar to each other.