cho doan thang AB va 2 diem M,N khong thuoc doan thang. Biet AM=MB, NA=NB.chung to 2 diem M,N cung voi trung diem I cua AB la 3 diem thang hang

LC

le cam hoa

25 tháng 11 2016

cho doan thang AB va 2 diem M,N khong thuoc doan thang. Biet AM=MB, NA=NB.

chung to 2 diem M,N cung voi trung diem I cua AB la 3 diem thang hang

#Toán lớp 7

0

NH

nguyen huu an

31 tháng 3 2017

cho hai diem M va N nam cung phia doi voi A,nam cung phia doi voi B. diem M nam giua Ava B biet Ab =5 cm AM =3cm BN=1cm .CMR BON DIEM A ,B , M,M nam thang hang va diem N la trung diem cua doan thang MB

#Toán lớp 6

0

HD

Hoàng Diệu Anh

27 tháng 11 2016

Cau 5: Trong cac khang dinh sau, khang dinh nao dung, khang dinh nao sai?1.Ba diem phan biet la ba diem thang hang.2.Voi ba diem phan biet luon co hai diem nam ve cung phia doi voi diem con lai.3.Voi ba diem thang hang phan biet luon co hai diem nam khac phia voi diem con lai.4.Voi ba diem A,B,C thang hang thi diem B luon nam giua hai diem A,C.5.Co mot va chi mot duong thang di qua hai diem (phan biet) cho truoc.6.Hai duong thang phan biet thi song song voi nhau.7.Hai tia chung goc thi cung nam...

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#Toán lớp 6

1

TM

Trần Minh Châu

19 tháng 11 2017

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HQ

Hoang Quoc Anh

27 tháng 11 2014

cho 3 diem A,B,C khong thang hang

a)Ve duong thang AB, doan thang BC,tia AC.Lay dien M tren duong thang AB sao cho B,M nam cung phia so voi diem A

b)Ve tia Ax la tia doi cua tia AC.Lay diem N sao cho A la trung diem cua doan CN(ve tren cung 1 hinh)

#Toán lớp 6

2

BT

bui tien dung

19 tháng 11 2017

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Đúng(0)

TM

Trần Minh Châu

19 tháng 11 2017

uytyyyy

Đúng(0)

LH

LÂM HOÀNG KHA

21 tháng 12 2015

tren tia xy ve doan thang AB sao cho AB = 6cm. Lay dien M nam giua A và B

a. Tinh do dai doan thang MB biet MA=3 cm. M co la trung diem cua A va B khong vi sao

b. Goi I la trung diem cua MA, J la trung diem cua MB. cho biet M có la trung diem cua IJ khong vi sao

#Toán lớp 6

0

NT

nguyen thanh vinh

28 tháng 10 2014

Trong mat phang voi he toa do Oxy, cho hinh vuong ABCD co diem M la trung diem cua doan AB va N la diem thuoc doan AC sao cho AN = 3 NC. Viet phuong trinh duong thang CD biet rang M(1;2) va N(2;-1).

#Toán lớp 9

0

NT

Nhi Tran

6 tháng 12 2015

cho doan thang AB =4cm. Tren tia AB lay diem M sao cho AM=2cm.

a)diem M co nam giua hai diem A va B khong? Vi sao?

b)sao sanh AM va MB?

c) diem M co la trung diem cua doan thang AB khong ? Vi sao?

#Toán lớp 6

0

PH

pank han buyl

9 tháng 12 2015

cho doan thang AB ,diem O thuoc tia doi cua tia AB .Goi M va N thu tu la trung diem cua OA,OB .Chung to rang do dai doan thang MN khong phu thuoc vao vi tri diem O, Chung minh rang OA<OB

#Toán lớp 6

0

TL

Toi la ai

28 tháng 11 2014

Cho doan thang AB=5cm ,M bat ki thuoc doan thang AB .Goi E,F lan luot la trung diem cua AM va BM.Chung to do dai EF khong phu thuoc vao vi tri cua M tren doan thang AB

#Toán lớp 6

2