CONG THUC TINH DIEN TICH, THE TICH HINH CHOP CUT

CHOP CUT NON CUT HINH CAU MUI CAU CHOM CAU

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a b c d h S V

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S = (a+c)[ (d-b)²/4 + h² ]½ + (b+d)[ (c-a)²/4 + h² ]½

V = h/6 [ ab + (a+c)(b+d) + cd ]

S : Dien tich xung quanh hinh chop cut. Ki hieu ½ : mu 1/2 - hay can bac hai cua mot gia tri

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