Question 1011700
If a parallelogram is equilateral does it mean it is a regular polygon? Would it also be equiangular?
<pre>
No and no.  The easiest example is a rhombus (diamond shape) which is
not a square:

It is a parallelogram, and it is equilateral, but it is not equiangular, 
so it is not regular.

{{{drawing(2400/11,400,-1.2,1.2,-2.2,2.2,

line(0,-2,-1,0),line(-1,0,0,2),line(0,2,1,0),line(1,0,0,-2)  )}}}

Edwin</pre>