Hans Walser, [20110221a]
Area of Stars
The black points are the vertices of a regular n-gon. The blue point (the center of the star on the right) is an
arbitrary point on the circle through the black points.
Prove: The area of the left star is half the area of the star on the
right.
What about the case ?
Fig. 1: n = 3
Fig. 2: n = 4
Fig. 3: n = 5