Question 90146
Use the formula for the area of a rectangle:
A=(length)(width)
A=?
Length = {{{(sqrt(3))}}} + {{{(sqrt(5))}}}
Width = {{{(sqrt(3))}}} + {{{(sqrt(5))}}}
.
Plug-in the values:
A=(length)(width)
A= {{{((sqrt(3) + sqrt(5)))}}} *  {{{((sqrt(3) + sqrt(5)))}}} 
[use the FOIL method to multiply]
.

A= {{{((3 + (2sqrt(3) sqrt(5))+5))}}}
A= {{{((8 + 2sqrt(15) ))}}} [combine like-terms]
A=15.7459