1 complete turn = 360&deg;. 1 quarter turn = 90&deg;.<br><br>
&bull; 540 ÷ 360 = 1 remainder 180 &nbsp; → 1 complete turn<br>
&bull; 180 ÷ 90 = 2 &nbsp; → 2 quarter turns<br>
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Final Answer: 1 complete turn + 2 quarter turns