Then the area of the first shadow from the outside to the inside is: s2011-s2010.
The area counted from the outside to the inside of the second shaded part is:
2009-2008
The area counted from the outside to the inside of the third shaded part is:
2007-2006
. . . . . . . . . .
The area of the penultimate shadow from the outside to the inside is:
S3-S2
The area of the last shaded part calculated from the outside to the inside is:
S 1
The area of the shadow is (S 2011-S 2010)+(S 2009-S 2008)+(S 2007-S 2006)+...+(S3-S2)+S 65438+.
=20 1 1+20 10+2009+2008+2007+2006+.......+3+2+ 1
=2023066