Các câu hỏi tương tự
cho doan thang MN dai 8 cm .tren tia MN lay E sao cho ME dai 4cm .
tren tia doi cua tia MN lay diem F sao cho M la trung diem cua doan thang FE .Tinh do dai doan FN
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
1. Goi A la trung diem cua doan thang MN. Tren tia doi cua MA lay diem D sao cho DA=6cm. Biet AN=2cm
a) Tinh MN.
b) Chung minh M la trung diem cua doan DN.
2. Cho p va p+2 la so nguyen to (p>3). Chung minh p+1 chia het cho 6
Tren tia Ox , lay 2 diem A;B sao cho OA=1cm;OB=5cm
a, tinh AB
b, Tren tia Ox lay diem C sao cho OC =9cm .Chung to rang B la trung diem cua AC .
c, Tren tia doi cua tia Ox , lay diem D sao cho OD=7cm . Chung minh rang A la trung diem cua CD
tren tia Ox lay 3 diem A, B , C sao cho OA = 2cm , OB= 4cm , OC = 10cm
a) chung minh rang A la trung diem cua OB
b) Goi I la trung diem cua BC . Tinh OI
c) tren tia doi cua tia Ox lay diem D sao cho OD = 7cm . Chung minh rang O la trung diem cua ID
tren tia Ax lay hai diem B va C sao cho AB2cm,AC8cma/ tinh do dai doan thang BCb/ goi M la trung diem cua doan thang BC tinh do dai BMc/ ve tia Ay la tia doi cua tia Ax tren tia Ay lay diem D sao cho AD2cm chung to rang diem A la trung diem cua doan thang BDgiup minh ve hinh cho minh nhanh len minh dang gap ve ca hinh cho to nua nhanh to like
Đọc tiếp
tren tia Ax lay hai diem B va C sao cho AB=2cm,AC=8cm
a/ tinh do dai doan thang BC
b/ goi M la trung diem cua doan thang BC tinh do dai BM
c/ ve tia Ay la tia doi cua tia Ax tren tia Ay lay diem D sao cho AD=2cm
chung to rang diem A la trung diem cua doan thang BD
giup minh ve hinh cho minh nhanh len minh dang gap ve ca hinh cho to nua nhanh to like
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
Cho tia Ox, tren tia Ox lay diem A, B sao cho OA = 3cm, OB = 7cm.
Tren tia doi cua tia BO lay diem D sao cho BD = 4cm
a, Chung minh A la diem nam giua hai diem O va B
b, Tinh AB
c, Chung minh B la trung diem cua AD
giup minh, minh can gap !!!!!
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