Geometry
最近有人在學生中心的廁所的黑板上寫下了一堆geometry的題目，想必是讀書讀昏了頭。但這令我想起我讀中學時的一條geometry題目。咁多年都仲記得，可想而知有幾富挑戰性。不如你地都試下啦！
There are two overlapping circles. The circumference of Circle A bisects the circumference of Circle B. The circumference of Circle B passes through the center of Circle A. Let the radius of Circle A be x, find the area of the intersection (ie, the overlapping part) of the 2 circles.
畫得出幅圖先啦！
TMC 2011 Fall 
Comments
=(x^2)*(2pi-2)/4
o岩唔o岩 ??
Posted by: Peter仔 | March 4, 2007 12:21 AM
差少少...
Posted by: Alan Yu | March 4, 2007 12:35 AM
i got (0.25pi – 0.5)x^2
Posted by: mandy | March 4, 2007 12:46 AM
Actually you're both right, but usually we will write it as:
[(pi-1)*x^2]/2
Posted by: Alan Yu | March 4, 2007 02:14 PM
And those who don't know how we figure it out, keep trying!
Posted by: Alan Yu | March 4, 2007 02:14 PM