Cut a Cake

We found this problem on
A cake with a corner missing can be cut into 7 unequally sized pieces with 3 cuts, following the gridlines. None of the cuts cross themselves, and each crosses the other cuts exactly once. Following these rules, cut the cake into 7 equally sized pieces with 3 cuts.

Can any find an equality 4-cut, with 11 pieces?
 There are 2 possible solutions.
Good solvers acquire eternal fame.
Mail to:

Name Country
Aad van de Wetering The Netherlands
Helmut Postl Austria
George Sicherman USA