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【324564】2024九年级数学下册 第3章 投影与视图3.3三视图3.3.1由几何体到三视图小练(

时间:2025-01-16 18:43:11 作者: 字数:767字
简介:


3章 投影与视图

3.3 三视图

1课时 由几何体到三视图

1.如图所示的立体图形的左视图为(  )

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/272/" title="几何" class="c1" target="_blank">几何</a> <a href="/tags/862/" title="视图" class="c1" target="_blank">视图</a> <a href="/tags/871/" title="几何体" class="c1" target="_blank">几何体</a> <a href="/tags/940/" title="投影" class="c1" target="_blank">投影</a>

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/272/" title="几何" class="c1" target="_blank">几何</a> <a href="/tags/862/" title="视图" class="c1" target="_blank">视图</a> <a href="/tags/871/" title="几何体" class="c1" target="_blank">几何体</a> <a href="/tags/940/" title="投影" class="c1" target="_blank">投影</a> (1)  <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/272/" title="几何" class="c1" target="_blank">几何</a> <a href="/tags/862/" title="视图" class="c1" target="_blank">视图</a> <a href="/tags/871/" title="几何体" class="c1" target="_blank">几何体</a> <a href="/tags/940/" title="投影" class="c1" target="_blank">投影</a> (2)

 2.如图是由5个大小相同的正方体搭成的几何体,则这个几何体的主视图是(  )

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/272/" title="几何" class="c1" target="_blank">几何</a> <a href="/tags/862/" title="视图" class="c1" target="_blank">视图</a> <a href="/tags/871/" title="几何体" class="c1" target="_blank">几何体</a> <a href="/tags/940/" title="投影" class="c1" target="_blank">投影</a>

3.如图所示的几何体中,仅主视图与俯视图相同的是__________(填序号)

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/272/" title="几何" class="c1" target="_blank">几何</a> <a href="/tags/862/" title="视图" class="c1" target="_blank">视图</a> <a href="/tags/871/" title="几何体" class="c1" target="_blank">几何体</a> <a href="/tags/940/" title="投影" class="c1" target="_blank">投影</a>

(3)

4.画出如图所示的几何体的三视图.

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/272/" title="几何" class="c1" target="_blank">几何</a> <a href="/tags/862/" title="视图" class="c1" target="_blank">视图</a> <a href="/tags/871/" title="几何体" class="c1" target="_blank">几何体</a> <a href="/tags/940/" title="投影" class="c1" target="_blank">投影</a>

(4)


3章 投影与视图

3.3 三视图

1课时 由几何体到三视图

1C 2.C 3.③

4.解:如图.

 <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/272/" title="几何" class="c1" target="_blank">几何</a> <a href="/tags/862/" title="视图" class="c1" target="_blank">视图</a> <a href="/tags/871/" title="几何体" class="c1" target="_blank">几何体</a> <a href="/tags/940/" title="投影" class="c1" target="_blank">投影</a> (4)



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