To find the perimeter of a compound figure made of rectangles, trace the outer boundary and add all external side lengths. Internal edges where rectangles meet are NOT part of the perimeter.<br><br>
&bull; Trace the outermost boundary of the whole shape.<br>
&bull; Only count edges on the outside, not where rectangles join.<br>
&bull; Sum of all outer edges = 14 cm.<br><br>
Final Answer: 14