1.tim cs a de aaaaa24 (voi a la cs ) chia het cho 8 va 9

2.tong ket dot thi dua lop 6a co bon ba ban duoc tu 1 diem muoi tro len , 39 ban duoc tu hai diem muoi tro len muoi bon ban duoc tu 3 diem 10 tro len  khong co ai duoc bon diem muoi  tinh xem trong dot thi dua do 6a co bao nhieu diem 10

 cac ban dua cau tra loi giup minh nhe minh can gap

cho hinh thang abcd bon diem m,n,p,q lan luot la trung diem cac canh ab,bc,cd,da,biet dien tich tu giac mnpq la 115cm2 tinh dien tich hinh thang abcdcho hinh thang abcd bon diem m,n,p,q lan luot la trung diem cac canh ab,bc,cd,da,biet dien tich tu giac mnpq la 115cm2 tinh dien tich hinh thang abcdcho hinh thang abcd bon diem m,n,p,q lan luot la trung diem cac canh ab,bc,cd,da,biet dien tich tu giac mnpq la 115cm2 tinh dien tich hinh thang abcd

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

can it nhat bao nhieu diem de noi lai ta dc bon hinh tam giac nhan ba diem trong cac diem ay lam dinh ?

lay bon diem A,B,C,D trong do co 3 diem khong thang hang.ke cac duong thang di qua cac cap diem.co tat ca bao nhieu duong thang ?do la nhung duong thang nao

cho ba diem a b c thang hang va d khong thuoc duong thang do . hoi co the ve duoc tat ca bao nhieu duong thang di qua hai trong bon diem noi tren ? 

lop 5b co bon to thi dua ,so diem muoi cua to mot =\(\frac{1}{2}\)cua ba to con lai,so diem muoi cua to hai =\(\frac{1}{3}\)cua ba con lai,so diem muoi cua to ba =\(\frac{1}{4}\)cua ba to con lai ,to bon co 26 diem muoi .hoi moi to co bao nhieu diem muoi

cho bon diem A,B,C,D thoa man dieu kien AB//CD,ad//bc. goi E,F lan luot la giao diem cua BDvoi AP va CM . o la giao diem cua AQva BD

a,cm o la trung diem cua AC va BD

b,cm  C,F,M thang hang 

c, cm DE=EF=FB

cho 2 diem M va N nam Cung phia voi A , nam cung phia doi voi B . Diem M  nam giua A va B . biet AB =3cm,BN=1cm.chung to rang:

a, bon diem ABMN thang hang  

b, diem N la trung diem cua doan MB 

c , ve dung tron tam N di qua B va duong tron tam A di qua N , chung cat nhau tai C tinh chu vi tam giac CAN

cho 2 diem M va N nam Cung phia voi A , nam cung phia doi voi B . Diem M  nam giua A va B . biet AB =3cm,BN=1cm.chung to rang:

a, bon diem ABMN thang hang  

b, diem N la trung diem cua doan MB 

c , ve dung tron tam N di qua B va duong tron tam A di qua N , chung cat nhau tai C tinh chu vi tam giac CAN