Những câu hỏi liên quan
Hoàng Diệu Anh
Xem chi tiết
Trần Minh Châu
19 tháng 11 2017 lúc 15:59

ttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttt

Nguyễn Thị Hương
Xem chi tiết
Call Me_MOSTER
18 tháng 9 2015 lúc 13:44

a)hinh tao thanh boi diem O va 1 phan duong thang bi chia ra boi diem Oduoc goi la 1 tia gốc O

b)diem R bat ki nam tren duong thang xy la goc chung cua 2 tia đối nhau

c)neu diem A nam giua 2 diem B va C thi:

-hai tia......AB và CA........doi nhau

-hai tia CA va ..........CB.............trung nhau

-hai tia BAva BC ........trùng nhau......

bạn nhấn đúng cho mình nhé , cảm ơn, 

 

school 2015
Xem chi tiết
Ta Thi My Le
Xem chi tiết
đàm thị mai giang
Xem chi tiết
CÁC BẠN TICK MÌNH NHA
2 tháng 4 2016 lúc 19:44

ta vẽ góc :

a)ta có góc mon = 900 

b)==> 750

còn lại bạn tụ giải nha

đến giờ ăn cơm rồi


x z y m n 30'

do pham minh linh
Xem chi tiết
bui tien dung
19 tháng 11 2017 lúc 15:13

okkkkkkkkkkkkkkkkkkkkkkkkkkokkkkkkkkkkkkkkkkkkkokkkkkkkkkkkkkkkkkkkkkokkkkkkkkkkkkkkkkkkkkkokkkkkkkkkkkkkkkkkkkkkokkkkkkkkkkkkkkkkkkkkkokkkkkkkkkokokokokokokokokokokokokoâkokokookokkoâkokoâkkkkkkkkkkkkkkkkkkkkkkkkkokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokgniondionnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnxhgfdfghîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuyîuïy

Lê Quỳnh Thanh Ngân
2 tháng 1 2018 lúc 7:39

bui tien dung bấm tào  lao

❤️ buồn ❤️
25 tháng 11 2018 lúc 14:26

còn đâu tự làm nốt vì nó qúa dễ vs cả bạn lười suy nghĩ và ko nghe cô giáo giảng nen bạn ko làm đk

Ta có :
AB = AM + BM 
=> MN = 3cm
Mà AM = 3cm (gt)
=> M là trung điểm của AB (đcpcm)

Hoàng Diệu Anh
Xem chi tiết
dangthuylinh
Xem chi tiết
Trương Hồng Hạnh
14 tháng 12 2016 lúc 6:39

Hình vẽ:

M A B 8 cm 4 cm

a/ Ta có: AM = 4 cm; AB = 8 cm

Vì AM < AB (4 <8) nên M nằm giữa A và B

b/ Ta có: AB = AM + MB

hay 8 = 4 + MB

=> MB = 4 cm

Ta có: AM = MB ( 4cm = 4cm)

c/ Ta có: AM = MB = 4cm = \(\frac{1}{2}\)AB

nên M là trung điểm AB

Tran Thi Xuan
Xem chi tiết
Thanh Hiền
11 tháng 12 2015 lúc 17:58

Câu C

Đúng nhất !!!