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Math corner exercises in grade two
Picture has been inserted. * * * There are two situations:

1, 5 angles, subtract one of them, and it is a Pentagon after cutting.

2, 3 angles, cut an angle from the diagonal, and the triangle is finished.

If satisfied, I hope to adopt it, O(∩_∩)O Thank you! ?

Change it, O(∩_∩)O Thank you? Zkq830928 Reminder!