A. Yes. 
  ***
   Q. How is a rachava the opposite of a front yard ?  
  A. It is a back yard. 
 *** 
  Q.  If someone allowed his neighbor some use of his property for Sukos may he also extend that use for during the year ?
  A. Not unless he gets specific permission. 
  ***
  Q. When should a fence be 
      4 amos high ?
    10 tefochim high ?
   3 tefochim ?
A. 4 - to block vision
     10 - to stop from stealing 
    3 -  to stop animals. 
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