MathDB

2015.12

Part of MBMT Guts Rounds

Problems(1)

MBMT Guts #12

Source:

3/29/2015
A square with side length 66 is rotated by 90āˆ˜90^\circ about its center. What is the area of the region swept out by the perimeter of the square (that is, the four line segments forming the boundary of the square)?