The problem of dividing a cake into two equal parts.

The cake is a large rectangle with a small cutout as shown in the picture. With just one cut, can you find a way to divide this cake into two equal parts?

Topic:

Tam and Hang prepared a birthday cake for Tung. The cake was rectangular. It was a delicious cake! While Tam was decorating it, Hang, unable to resist the delicious taste, secretly cut and ate a rectangular piece as shown in the picture.

At the party, Tung and Tam wanted to punish Hang for eating first. They decided not to share any more cake with Hang. Instead, they wanted to divide the remaining cake equally among themselves.

With a single straight cut and three minutes of thought, help Tung and Tam divide the cake.

>>>See the answer

Vo Quoc Ba Can

Math teacher, Achirmedes Academy, Hanoi

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