Time Limit: 1000 mSec Memory Limit : 32768 KB

Given a sector of radius R, central angle P. You are to calculate the distance between the center of gravity and the center of the circle.

Given a sector of radius R, central angle P. You are to calculate the distance between the center of gravity and the center of the circle.

Given a sector of radius R, central angle P. You are to calculate the distance between the center of gravity and the center of the circle.

0.01 6.28

0.000003