title: C#, max, find rectangle in list with biggest area
body: <p>I have a list of rectangles "collidedrects"
  I want to pass the one with the greatest area to the function _playership.Collide()
  So far I have...</p>
  
  <pre><code>var item = collidedrects.Max(x =&gt; x.Height*x.Width);
  _playership.Collide(collidedrects[item]);
  </code></pre>
  
  <p>I'm not familiar with max and also the => thing in C#</p>