12 units sq^2 is 3x4. If the sides with four units have their sides covered, than it would be the two middle square units, on the sides that need covering.
4+4+1+1= 10 units needing covering. :)
33 posted on 03/10/2015 6:03:13 PM PDT by Jonty30
(What Islam and secularism have in common is that they are both death cults)