Các câu hỏi tương tự
1.Tim cac so tu nhien x sao cho:a/6 chia het cho (x-1) b/14 chia het cho (2.x+3)2.Ve hinh de thay rang moi cau sau day la saia/Hai tia chung goc luon la hai tia doi nhaub/Hai tia chung goc luon la hai tia trung nhauc/Hai tia chung hoc luon la hai tia phan bietd/Hai tia co nhieu diem chung chi khi chung la hai tia trung nhaue/Hai tia phan biet va co chung goc luon la hai tia doi nhauf/Hai tia ko chung goc luon la hai tia khong co diem chung3/a/Ve 3 diem thang...
Đọc tiếp
1.Tim cac so tu nhien x sao cho:
a/6 chia het cho (x-1) b/14 chia het cho (2.x+3)
2.Ve hinh de thay rang moi cau sau day la sai
a/Hai tia chung goc luon la hai tia doi nhau
b/Hai tia chung goc luon la hai tia trung nhau
c/Hai tia chung hoc luon la hai tia phan biet
d/Hai tia co nhieu diem chung chi khi chung la hai tia trung nhau
e/Hai tia phan biet va co chung goc luon la hai tia doi nhau
f/Hai tia ko chung goc luon la hai tia khong co diem chung
3/
a/Ve 3 diem thang hang A,B,C sao cho diem B nam giua hai diem A,C.Sau do hay ke ten:cac tia,cac cap tia doi nhau,cac cap tia phan biet,cac cap tia trung nhau co trong hinh ve do.
b/Ve 4 diem A,B,C,D tren mot duong thang sao cho diem B nam giua hai diem A,C va diem C nam giua hai diem B,D.Sau do hay ke ten:cac tia,cac cap tia doi nhau,cac cap tia phan biet,cac cap tia trung nhau co trong hinh ve do.
~~~~~~~~~~~~~Giup tui voi!!!!!~~~~~~~~~~~~~~
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?
BAI1
A,
TU DANG THUC 2.3= 1.6 , TA CO THE LAP DC CAC CAP PHAN SO BANG NHAU NAO?
B, HAY LAP CAC CAP PHAN SO BANG NHAU TU DANG THUC 3.4= 6.2
AI NHANH MINH KB NHE
1. Cho hai tia Ox, Oy va D thuoc Ox, E thuoc Oy. Biet rang OD = 4cm, OE = 5cm va DE = 9cm. Chung minh rang Ox, Oy la hai tia doi nhau.
2. Tren tia Oy ve cac doan thang OA = 2cm, OB = 5cm va OC = 10cm. Tu do tinh do dai cac doan thang AB, BC va AC .
Mong cac ban giup
hai cap so nguyen to hon kem nhau 2 don vi goi la cap so nguyen to sinh doi. tim cac cap so nguyen to sinh doi nho hon 100
1. Lay 4 diem A, B, C, D trong do khong co 3 diem nao thang hang. Ke cac duong thang di qua cac cap diem. Co bao nhieu duong thang tat ca? do la nhung duong thang nao?
2. Lay 4diem M,N,P,Q trong do 3 diem M,N,P thang hang va diem Q nam ngoai duong thang do. ke caacacc duong thang di qua cac cap diem. co bao nhieu duong thang phan biet? viet ten cac duong thang do
mong cac ban giai ho minh!
lay Othuoc xy
a' viet ten cac tia doi nhau
b , lay Athuoc Ox , B thuoc Oy . Khi do Ava B nam cung phia hay khac phia doi voi O suy ra diem nao nam giua hai diem con lai
c , cho biet OA = 3 cm , AB= 6 cm tinh OB so sanh OA voi OB diem nao la trung diem cua AB
ve hai tia doi nhau Ox.Oy roi lay diem Athuoc Ox ,Bthuoc Oy [A va B khong trung voiO}
a VIET ten cac tia trung voi tia Ay
b 2 tia Ba va Ox co trung nhau khong?vi sao?
c 2 tia Ax va By co doi nhau khong?vi sao?
d trong 3 diem A,O,B diem nao nam giua 2 diem con lai
Cho truoc n diem trong do ko co 3 diem nao thang hang.Ve cac duong thang di qua cac cap diem,Tim n biet rang neu co them 1 diem(ko thang hang voi bat ki 2 diem nao trong so n diem da cho) thi so duong thang ve duoc tang them la 8.
Minh dang can gap!Cac ban giup minh voi nhe!