here is a round cake. You have 3 chances to cut the cake. Divide the cake into 8 pieces in these 3 chances.

• Don't separate the pieces until 3 chances are done.
  (1) cut at center of the cake in circular shape.
  (2) cut the half of the cake in horizontally.
  (3) cut the half of the cake vertically.
  Now separate the pieces. you can get 8 pieces in 3 chances.
• 14 years agoHelpfull: Yes(22) No(6)
• First, cut circle in 4 pieces by cutting along two diameter.
  Now, cut from middle i.e if cake height is h cut in middle at h/2 to form 8 pieces
• 14 years agoHelpfull: Yes(11) No(4)