Mathematics, 27.10.2021 15:00 bigbear123
Cho tam giác DEF vuông tại D, đường cao DI. Biết , DE = 18 cm . Giải tam giác DEF và tính độ dài DI.
Answers: 1
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Cho tam giác DEF vuông tại D, đường cao DI. Biết , DE = 18 cm . Giải tam giác DEF và tính độ dài DI....
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