tren duong thang a ,lay 4 diem M,P,N,Q theo thu tu do .Biet MN=2,MQ=5,NP=1
so sanh NP va PQ
TIm nhiung cap doan thang bang nhau trong hinh ve
a] ve hinh theo dien dat sau:ve hai duong thang a,b cat nhau tai O.tren a lay cac diem A,A,C theo thu tu tren .tren b lay m,N,P theo thu tu
tren .Goi K la giao cua doan thang AN va BM,goi H la giao cua doan thang AP va CM ,goi I la giao cua doan thang CN va PB
b] hay nhan xet 4 diem O,K,H,I
cho 2 duong thang A va B cat nhau tai O .Tren duong thang A lay 3 diem A,B,C theo thu tu do.Tren duong thang B lay 3 diem M,N,P theo thu tu do .Goi I la giao diem 2 doan thang AN va PM .Goi K la giao diem 2 doan thang AB va CM.Goi J la giao diem 2 doan thang CN va PB .
ai giai nhanh cho tui zoi lay cac thanh luon
Cho doan thang d . Ve them 4 diem M,N ,P,Q theo thu tu ay . Ve diem A khong nam tren duong thang d.
a) Ve tia AM, tia QA
b)Ve duong thang AN va duong thang AP.
c) hinh tren co bao nhieu doan thang?
cho hinh thang ABCD. tren AB lay 2 diem M va N ke hai duong sao cho doan AM=ND=AD/4. Tu M va N ke 2 duong song song voi AB va CD, chung cat canh BC tai P va Q. Noi NP,QN. hay chung to rang dien tch hinh thang MPQN=1/2 dien tich hinh thang ABCD
Cho diem Nva P , biet MN=2cm ; NP =8cm .
a Tinh do dai doan thang MP
b Lay diem Q thuoc doan thang NPsao cho MQ=3QP .Tinh do dai doan thang QP va QM
cho hai tia Hx va Hy , Tren cac tia Hx , Hy lan luot lay cac diem B,C sao cho HB bang 6cm;HCbang 4cm. Goi M ,N la trung diem cua thu tu HB,HC
a, tinh do dai doan MN
b, lay diem A khong thang hang voi B,C roi noi A voi H,B,C,M,N. Hay ve hinh va ghi ten cac doan thang co trong hinh ve0
Tren duong thang d lay 2016 diem phan biet tinh so doan thang tren hinh ve duoc tao nen tu 2016 cac diem do
Cho 3 diem M,N,P thang hang va diem N nam giua 2 diem M,P . Goi E va F tuong ung la trung diem cua cac doan thang MN,Np. biet MN =3cm,Np=7cm.khi do do dai doan thang EF bang bao nhieu cm
cho 3 diem M N P theo thu tu do nam tren duong thang xy so doan thang ci tren hinh ve la so cap tia doi nhau co tren hinh ve la