How do I do the perimeter of a rectangle which has square roots in the length and width, for example:

 

   How do I do the perimeter of a rectangle which has square roots in the length and width, for example:     

   Length = 8 + sqr(3) and Width = sqr(6).     

 

   The same as the usual way.  Don't let funny looking numbers scare you.     

 

   P  =  2L + 2W     

   P  =  (2 • (8 + sqrt(3) ) )  +  (2 • sqrt(6) )     

   P  =  16 + 2sqrt(3) + 2sqrt(6)     

   P  =  16 + (2 • (sqrt(3) + sqrt(6) )     

 

   Or you can use the square root function on a calculator to get the values.     

 

   P  =  (2 • (8 + 1.732) )  + (2 • 2.449)     

   P  =  (2 • 9.732) + (2 • 2.449)     

   P  =  19.464 + 4.898     

   P  =  24.362     

   _.