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Mathematics, 31.08.2021 06:00 sunshine52577oyeor9

Cho tam giác ABC vuông ở A có AB=12 cm, AC=5cm a, tính độ dài BC và góc ABC (độ lớn của góc làm tròn đến phút)
b, kẻ AH vuông góc BC ,tính AH

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Cho tam giác ABC vuông ở A có AB=12 cm, AC=5cm a, tính độ dài BC và góc ABC (độ lớn của góc làm tr...
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