Toolbar: 
Constraints toolbar 

Menu: 
Add menu > Geometry submenu> > Constraints submenu > Add Equal 

What to do: 
The Equal constraint applies to the length or radii of sketchelements. Click Add Equal Constraint, then click:
 or 
 or 


Result: 
 or 


Notes: 

Before 
After 
Select: 
In SelectionWindow & GeometryTree as... 


Equal in Length 
EqualLength 

Equal in Radius 
EqualRadii 
TopTip If you want to make an array of equally spaced Points, then:
The Lines become a long, straight, line with equally spaced Points'
