Error message

Deprecated function: The each() function is deprecated. This message will be suppressed on further calls in menu_set_active_trail() (line 2405 of /home1/acsdcus/public_html/zhonghuacup/includes/menu.inc).

算一算 Calculations

请算出图中阴影部分的面积。(注:图形未按比例表示。)

Please find the shaded part area. (Note: Figure not drawn to scale.)

谜语答案 Answers