How to change the length of multiple edges in the 3d editor?

Question

3D

The goal is to make several edges of the same length!
Question about Blender. If you know how to do it in other editors, write

Answer 1

If the model is symmetrical, then model one half first, then mirror it. If not, there was a tool in Max - Ruler (I don’t remember exactly if it was called that, it’s worth a better look in auxiliary tools). True, in three-dimensional space it is not very convenient.