cho AABC tren canh Ab lay diem I tren canh BC lay diem j sao cho AB = 2AI AC = 3cj dien tich aabc gap may lan dien tich abc
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cho tam giac ABC. Tren canh AB lay diem I sao cho AB = 2AI, tren canh AC lay diem J sao cho AC= 3CJ. dien tich tam giac ABC gap may lan dien tich tam giac BIJ
cho tam giac ABC. Tren canh AB lay diem I sao cho AB = 2AI, tren canh AC lay diem J sao cho AC= 3CJ. dien tich tam giac ABC gap may lan dien tich tam giac BIJ
cho tam giac abcd tren canh ab lay diem m tren canh ac lay diem n sao cho an=1/3ac nc2/3ac dien tich abc gap dien tam giac anm so lan la
cho tam giac abc tren canh ab lay diem m,tren canh ac lay diem n so cho am bang 1/3 ab,nc=2/3 ac.hoi dien tich tam giac abc gap may lan tam giac amn
Cho tam giac ABC . Tren canh AB lay diem M , tren canh AC lay diem N sao cho AM = \(\frac{1}{3}\)AB , NC = \(\frac{2}{3}\)AC . Dien tich tam giac ABC gap may lan dien tich tam giac AMN ?
cho tam giac ABC lay diem M tren canh AB sao cho AM=1/3 AB lay diem N tren canh AC sao cho AN = 2/3 AC tren canh BC lay diem P sao cho CP=1/3 BC tinh dien tich tu giac BMNP biet dien tich tam giac ABC la 108 cm2
cho tam giac ABC. tren canh ab lay diem m ,tren canh ac lay diem n sao cho am = 1/3ab, nc =2/3 ac.dien tich tam giac abc gap dien tich tam giac amn bao nhieu lan
cho tam giac ABC tren canh AB lay diem M tren canh AC lay diem N sao cho AM=1/3AB NC=2/3AC dien tich tam giac ABC gap dien tich AMN so kan la
cho tam giac ABC co dien tich bang 36cm2. tren canh AB lay diem M, tren canh AC lay diem Q va tren canh BC lau diem N sao cho AM=2 BM; BN= 2 CN; CQ = 2 AQ
a) tinh dien tich tam giac ABN
b) tinh dien tich tam giac MNQ