Hi Larry,

You're right, but 2.24 is not the real size because it's sqareroot of 5.
Squareroot of 5 is 2.2360679775...

But Moi can help you...
If you give the exact value to Moi (2 times squareroot of five), the job is done...
Give the size as 2*sqrt(5) and MoI will understand it !

The documentation explains it :

Any of the functions on the JavaScript "Math" object are available for use, including: sin(), cos(), tan(), sqrt(), pow(), round(), random(), the constant PI, 
and also rad() which takes a parameter in degrees and returns it in radians, and deg() which takes a parameter in radians and returns it in degrees.

Even if you show 7 decimal places, it gives you the right distance.

Thanks to Magic Michael !