Cut the circular cake in half and set each semicircle against adjoining sides of the square to form the top of the heart.
把圆形蛋糕切成两半，把每个半圆放在正方形的两边，形成心形的顶部。
The birthday cake is not round, it's square.
这个生日蛋糕不是圆的，是方的。
She asks each invited person to determine the size of the piece of cake that he/she wants (which should also be square-shaped).
题意：将一个大的正方形的蛋糕恰好切成多个小正方形，问能否做到。
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