title: How to fill tuple in C#?
body: <p>I have got the Tuple as:</p>
  
  <pre><code> private Tuple&lt;double, double, int&gt;[] circle;
  </code></pre>
  
  <p>I trired to add and element using <code>add()</code> method. But there is not exist.</p>
  
  <p>How to add element in Tuple array?</p>