title: Closest rectangle/square given area size
body: <p>I need to derive a Width and Height given an area size in C#.
  The Width and height need to be integer that are closest as possible to a square.
  For example - Area = 100 --> Width = 10, Height = 10
  Area = 162 --> Area = 162 --> Width = 18, Height = 9.</p>
  
  <p>How can I do it?</p>