Bill has five pennies . He shall make as many triangles as he can to gain more money. For every unique triangle that he creates on a flat table (3 corners at centers of coins) he wins a nickle but for some triangles that dont overlap or intersect with other triangles, he wins a dime. He shall declare the triangles he formed on the table. So Bill can name the identical coins A,B,C,D and E. Note U$ penny is 1-cent, nickle is 5-cents and dime is 10-cents.
How shall Bill put all his coins on the table for greatest earnings?