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Mathematics, 04.10.2021 20:50 caelilou

cho tam giác ABC vuông tai A có canh góc vuông AB=15cm, AC=20cm tu C kẻ duong vuong góc voi canh huyen, duong nay cat duong thang AB tai D. tính AD, CD

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cho tam giác ABC vuông tai A có canh góc vuông AB=15cm, AC=20cm tu C kẻ duong vuong góc voi canh huy...
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