有一块截面为等边三角形的木板,边长为1,现将木板沿水平面翻滚两次(如图),那么B点从开始至结束所经过的路径长度为( )

作者: tihaiku 人气: - 评论: 0
问题 有一块截面为等边三角形的木板,边长为1,现将木板沿水平面翻滚两次(如图),那么B点从开始至结束所经过的路径长度为( )
选项
答案 B
解析

相关内容:一块,三角,木板,现将,水平面,如图,路径,长度

猜你喜欢

更多 网友评论0 条评论)
暂无评论
错误啦!

错误信息

  • 消息: [程序异常] : MISCONF Redis is configured to save RDB snapshots, but it's currently unable to persist to disk. Commands that may modify the data set are disabled, because this instance is configured to report errors during writes if RDB snapshotting fails (stop-writes-on-bgsave-error option). Please check the Redis logs for details about the RDB error.
  • 文件: /twcms/kongphp/cache/cache_redis.class.php
  • 位置: 第 85 行
    <?php echo 'KongPHP, Road to Jane.'; ?>