term1 Definition1term2 Definition2term3 Definition3
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Tam giác cân
Là tam giác có 2 cạnh bằng nhau
Tam giác đều
Là tam giác có 3 cạnh bằng nhauhinhf
Hình bình hành
Là tứ giác có 2 cặp cạnh đối song song
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