hệ thức lượng tam giác vuông
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Mathematics
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9th Grade
•
Hard
Đức Anh
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4 Slides • 0 Questions
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hệ thức lượng tam giác vuông
2
Có 7 hệ thức lượng trong tam giác vuông (Lấy tam giác ABC vuông tại A)
(1): AB2 = BH.BC
(2): AC2 = CH.BC
(3): AB.AC = BC.AH
(4): AH2 = BH.HC
(5): AB2 = AH2 + BH2
(6): AC2 =AH2 + CH2
(7): BC2 = AC2 + AB2
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Hệ thức số (1) và (2)
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hệ thức lượng tam giác vuông
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