矩形A{"language":"en","fontFamily":"Times New Roman","fontSize":"18"}" class="Wirisformula" role="math" alt="一个" style="vertical-align:-6px;height:22px;width:15px">尺寸为3厘米乘8厘米。
相等的五个矩形A{"language":"en","fontFamily":"Times New Roman","fontSize":"18"}" class="Wirisformula" role="math" alt="一个" style="vertical-align:-6px;height:22px;width:15px">连接成一个形状。
算出这个形状的周长。
...........................................cm [2]