Cho hinh thang ABCD ; 2 duong cheo AC va BD cat nhau tai I . Em hay tim cac cap tam giac co dien tich bang nhau?

cho hinh thang abcd day be ab day lon cd hai duong cheo ac va bd cat nhau tai o tim va giai thich cac cap tam giac co dien tich bang nhau

Bai 1:Cho 3 duong thang x' y y' . Ba duong thang cung di qua diem O

Hay liet ke cac cap goc doi dinh boi cac duong thang da cho

Bai 2 : cho 2 duong thang x x' va y y' cat nhau tai O biet goc yOx - yOz= 30. Tinh so do moi goc co tren hinh ve. 😘😭😭😭😭🙌🙋giup minh nha

cho hinh thang abcd day be ab day lon cd hai duong cheo ac va bd cat nhau tai dien o tim va giai thich cac cap tam giac co dien tich bang nhau

cho hinh thang abcd day be ab, day lon cd,2 duong cheo ac va bd cat nhau tai o . tim va giai thich cac cap tam giac co dien tich bang nhau

giup minh voi !

hai duong thang a va b cat duong thang c va trong cac goc tao thanh co mot cap goc trong cung phia bu nhau. vi sao duong thang a song song voi duong thang b

1.   tim cac cap so nguyen duong (x, y) sao cho:

2 x³ + xy = 11

2.   tim cac cap so nguyen duong (x, y, z)sao cho:

x + y + z = x*y*z

3.   tim x thuoc z, biet;

|x| = -2003

|x| = |-2003|

minh dang can gap lam. chieu mai phai nop rui

cho 2 duong thang aa^/ ,yy^/ cat nhau tai o ,xôy =30^o .tinh cac goc con lai

giup toi nha nhanh len khan cap

lay muoi mot diem M,N,P,Q,A,D,F,G,R,T,S trong do khong co ba diem nao thang hang . Ke cac duong thang di qua cac cap diem . Co bao nhieu duong thang ( phan biet ) ? Viet ten cac duong thang do .

a) ve nam diem M,N,P,Q,R sao cho ba diem M,N,P thang hang,ba diem N,P,Q thang hang ,con ba diem N,P,R khong thang hang b) ke cac duong thang di qua cac cap diem.Co bao nhieu duong thang,ke ten cac duong thang do c)co bao nhieu doan thang?ke ten cac doan thang do d)ke ten cac tia goc P.Trong cac tia do chi ra hai tia doi nhau ? hai tia trung nhau?