In detail

Cut the anniversary cake

Cut the anniversary cake

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Juanito celebrates his birthday with his friends. There are eight in total, so when Juanito prepares the cake to make four cuts with the knife and get the eight pieces, his friend Pedrito, who is very fond of riddles, proposes the following:

Are you able to cut the cake into eight equal-sized portions with only three cuts?


The only way to get three cuts of equal size is by first making two cross-shaped cuts to get four equal pieces and then making a horizontal cut through the center of the cake to divide it into eight parts, as shown in the drawing.