v">9</span>, </span>
<span id="cb2-4"><a href="#cb2-4" aria-hidden="true" tabindex="-1"></a>  <span class="at">angle =</span> <span class="fu">c</span>(<span class="sc">-</span><span class="dv">15</span>, <span class="dv">15</span>, <span class="dv">30</span>)</span>
<span id="cb2-5"><a href="#cb2-5" aria-hidden="true" tabindex="-1"></a>)</span>
<span id="cb2-6"><a href="#cb2-6" aria-hidden="true" tabindex="-1"></a>tree</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></