hexagon=50:2
=25
dreptunghi=romb:25
=3hexagon
=25*3
=75
romb=triunghi*hexagon
=75*25
=1875
patrat=cel mai mic nr.de 4 cifre identice
=1111
cerc=patrat+patrat
=1111+1111
=2222
triunghi=cerc-romb
=2222-1875
=347
avem
1111+1111=2222
2222- 347=1875
1875: 75 = 25
25 + 25 = 50