Các câu hỏi tương tự
tren tia ox lay hai diem m,n sao cho om=2cm,on=8cm
a,tinh do dai doan thang mn
b,tren tia doi cua tia nm,lay mot diem p sao cho np=6cm.chung to diem n la trung diem cua doan thang mp
ve doan thang MN=6cm . Tren doan thang MN lay diem I sao cho IM=4cm . Tinh IN . Tren tia doi cua tia MN lay diem H sao cho MH = 2IN . Tinh HI . M co phai la trung diem cua doan thang IH ko
cho doan thang mn=10. Tren tia MN ve diem P sao cho doan thang MP co do dai bang 5cm
a.Trong ba diem M,N,P diem nao nam gua 2 diem con lai
b.So sanh do dai doan thang MP va PN
c.Diem P co la trung diem cua doan thang MN khong ? Vi sao ?
Cho doan thang AB =8cm . Tren tia AB lay diem M sao cho AM=3cm
a)Tinh do dai doan thang BM
b)Goi N la trung diem cua doan thang BM . tinh do dai doan thang MN
c)Lay diem P htuoc tia doi cua tia AB sao cho MP=6cm . Hoi A co la trung diem cua doan thang MP ko ?vi sao
Ve doan AB = 3cm . Tren tia AB ve diem H sao cho AH = 6cm . Giai thich vi sao diem B la trung diem cua doan AH
Cho doan thang ab =7cm yren doan thang ab lay diem m sao cho am=2cm
A tinh bm
B tren tia doi cua tia ab lay diem n sao cho an =2cm diem a co phai la trung diem cua mn ko vi sao
1, cho doan thang dai 3cm. tren tia AB lay diem I sao cho IA=2cm.
a, tinh IB
b, lay diem C thuoc tia doi cua tia BI sao cho BC = 3cm. tinh IC
2, cho doan thang MN=8cm. goi R la trung diem cua MN
a, Tinh MR, RN
b, lay 2 diem PQ tren doan MN sao cho MB bang NQ =3cm. tinh PR, QR
c, diem R co phai la trung diem cua PQ khong. vi sao
cac ban ve hinh ra gium minh nhe, minh can gap, cam on cac ban nhieu
Ve doan thang AB= 4cm . Tren tia AB ve diem O sao cho AO = 2cm . Giai thich vi sao O la trung diem
doan AB
cho hai tia doi nhau Ox,Ox'.tren tia ox ve diem A sao cho OA=2cm.Tren tia Ox' ve diem B sao cho OB=2cm. Hoi O phai la trung diem cua doan thang AB khong vi sao ?