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the school, the village has a clinic
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It was foolish of him to his notes during that
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Most young people enjoy some form of
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ADADADADAD
钝角,两条,锐角
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the school, the village has a clinic
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It was foolish of him to his notes during that
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Most young people enjoy some form of
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题目我们戴的红领巾上有一个______角,两个______角.可圈可点用户2021-03-11 13:35优质解答答案钝、锐解析一条红领巾有3个角,其中有一个钝角,有两个锐角,考点名称:角的认识,角的分类(直角,锐角,钝角)概念:从一点引出
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题目
我们戴的红领巾上有一个______角,两个______角.
可圈可点用户
2021-03-11 13:35
优质解答
钝、锐
一条红领巾有3个角,其中有一个钝角,有两个锐角,
考点名称:角的认识,角的分类(直角,锐角,钝角)
概念:
从一点引出两条射线,就组成一个角。一个角有一个顶点,两条边。
角的大小:
角的大小看两条边叉开的大小,叉开的越大,角就越大。角的大小与角两条边的长短没有关系。
角的分类:
锐角:小于90度的角;
直角:等于90度的角;
钝角:大于90度且小于180度的角。
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