title: How to Determine if a Triangle contains a specific point?
body: <p>I've question to ask you guys...</p>
  
  <p>Now lets say I've a virtual grid, and I have junction points on these virtual grid as show below</p>
  
  <p><img src="https://i.stack.imgur.com/OtK92.png" alt="Junction Points On Virtual Grid"></p>
  
  <p>Now lets say I've drawn a triangle onto this virtual grid as show below</p>
  
  <p><img src="https://i.stack.imgur.com/tj9UR.png" alt="Triangle with Points"></p>
  
  <p>Now I wonder if any of the virtual grid's point is <strong>contained</strong> by the triangle...
  How can I achieve this using C#.Net?</p>
  
  <p><strong>Note</strong>: I also know the points for the triangles, and the question is for 2D plane..</p>
  
  <p>My best regards...</p>