圆术语 - 半径直径扇形弓形弦和切线 | 几何 | 数学 | FuseSchool

点击这里观看更多视频: https://alugha.com/FuseSchool 描述: 圆有一些我们需要知道的关键词: 半径、周长、直径、扇形、弓形、切线、弦和弧。在这个视频中,我们会了解它们的意思。半径是从圆心到圆上一点的距离。直径是圆通过圆心的距离。圆周是围绕圆周边缘的距离。扇形是由圆的两个半径及其截断的圆弧所包围的圆的一部分。圆的馅饼状部分。弓形是指圆的弦与其相关的弧之间的区域。切线是只与圆相交一点的直线。弦是连接圆或曲线上两点的线 (它不必穿过中心)。弧是圆周的一部分。 请访问我们的网站www.fuseschool.org,我们所有的视频都被精心组织成不同的主题和特定的顺序,看看我们还提供什么。评论,点赞并与其他学习者分享。你可以提问和回答问题,我们的老师也会回复问题。 Twitter: https://twitter.com/fuseSchool 在FuseSchool平台和app上获得更深入的学习体验: www.fuseschool.org 加我们好友: http://www.facebook.com/fuseschool 此开放教育资源是免费的,遵循知识共享许可协议: attribu-noncommercial CC BY-NC (查看许可: http://creativecommons.org/licenses/by-nc/4.0/)。视频可被下载用于非营利的教育用途。如果您想修改视频,请联系我们: info@fuseschool.org

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