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minhhungthanthi
2 năm trước
Cho đoạn thẳng AB. Vẽ cung tròn tâm A bán kính AB và cung tròn tâm B bán kính BA, chúng cắt nhau tại C và D. Chứng minh rằng a) Tam giác ABC= tam giác ABD b) Tam giác ACD= tam giác BCD Nếu đc vẽ hình giùm mik luôn nha!!! mai mik phải nộp bài rồi cảm ơn rất nhiều (thank you very much)
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