Mathematics, 11.09.2021 08:00 gagehamel
Cho tam giác DEF vuông tại D , có DH là đường cao biết DE=15cm, HE=19.Tính EF ,FH, DH, DF
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Cho tam giác DEF vuông tại D , có DH là đường cao biết DE=15cm, HE=19.Tính EF ,FH, DH, DF...
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