2016年秋季小学三年级《四边形》练习题及答案

<div style="text-align: center;"><font color="#ff0000"><strong>2016年秋季小学三年级《</strong><strong>四边形</strong><strong>》</strong><strong>练习题</strong></font></div><br><span>1.在四边形的下面画√。</span><br><br><img src="//www.szxuexiao.com/uploadimages/2016/0829/2016829135332.png?m=0.27223627548209484"><br><br><span>2.判断。</span><br><br><span>(1)由四条线段围成的图形,不是长方形,一定就是正方形。( &nbsp;&nbsp;)</span><br><br><span>(2)长和宽相等的长方形就变成了正方形。( &nbsp;&nbsp;)</span><br><br><span>(3)长方形、正方形都是四边形。( &nbsp;&nbsp;)</span><br><br><span>3.在方格纸上画一个长8厘米、宽6厘米的长方形和一个边长是4厘米的正方形。</span><span>(</span><span>每个小方格的边长为</span><span>1</span><span>厘米</span><span>)</span><br><br><img src="//www.szxuexiao.com/uploadimages/2016/0829/2016829135411.png?m=0.46165310429155415"><br><br><span>4.算一算。 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><br><br><span>下图是一个长方形,长10厘米,宽6厘米,如果剪下一个最大的正方形,正方形的边长是( &nbsp;&nbsp;)厘米,剩下一个( &nbsp;&nbsp;)形,小长方形的长是( &nbsp;&nbsp;)厘米,宽是( &nbsp;&nbsp;)厘米。</span><br><br><img src="//www.szxuexiao.com/uploadimages/2016/0829/2016829135458.png?m=0.916480309635926"><br><br><span>5.你知道吗?</span><br><br><img src="//www.szxuexiao.com/uploadimages/2016/0829/2016829135545.png?m=0.054985251111798306"><br><br><br><div style="text-align: center;"><strong><font color="#38761d">2016年秋季小学三年级《四边形》练习题参考答案</font></strong></div><br><span>1.</span><br><br><img src="//www.szxuexiao.com/uploadimages/2016/0829/2016829135733.jpg?m=0.21452342804600022"><br><br><span>2.(1)× &nbsp;&nbsp;(2) √ &nbsp;(3)√</span><br><br><span>3. </span><span>&nbsp;&nbsp;&nbsp;</span><br><br><img src="//www.szxuexiao.com/uploadimages/2016/0829/2016829135655.png?m=0.8644354341713918"><br><br><span>4. 6 &nbsp;长方形 &nbsp;&nbsp;6 &nbsp;&nbsp;4 &nbsp;&nbsp;</span><br><br><span>5. 3 &nbsp;9</span><br><br>