底面是边长为2的正三角形的三棱锥的主视图和俯视图如图所示,则其侧视图的面积为( )。

作者: tihaiku 人气: - 评论: 0
问题 底面是边长为2的正三角形的三棱锥的主视图和俯视图如图所示,则其侧视图的面积为( )。
选项
答案 C
解析
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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.'; ?>