Question on this ABCD pattern

Hi, I have read through it and need some help here.
The ABCD and the Three-Drive

It says length of AB = length of CD.

In that case it should be 1.618 if the retracement is 0.618 instead of 1.272?

Can anyone help me out here? Thank you. :slight_smile:

This should answer your Q

ABCD vs AB=CD

Thank you. :slight_smile: