Các câu hỏi tương tự
CAC BAN CO BIET NHUNG CAU HOI NAO THUONG CO TRONG BAI KIEM TRA HOC KI 2 KO
NEU BAN NAO KIEM TRA HOC KI ROI NHO TRA LOI MK NHA
MAI MK THI ROI NEN MK DANG CAN GAP
AI TRA LOI NHANH MK SE TICK CHO
LOP 6 NHA MOI NGUOI
Tren cung nua mat phang co bo la duong thang xy di qua diem O. Ve tia Ot , Oz sao cho xot =62° , yoz = 28 °.
a) Tinh toz
b) Viet ten cac goc nhon, goc vuong, goc tu
c) Viet ten cac cap goc phu nhau
d) Viet ten cac cap goc ke bu, bu nhau
Cac viet day du giup mk nhe
Giup mk voi mk dang can sieu gap
cho goc bet xOy . ve tia Oz sao cho yOz=60do
a) tính số đo góc zOx
b)ve tia om , on lan luot la tia phan giac cua goc xOz va zOy . hoi 2 goc zOm va zOn co phu nhau ko . vi sao?
NHANH NHA MK DANG CAN GAP LAM???????
cau hoi ; ve hai goc vua phu nhau vua ke nhau . Ai co cau tra loi nhanh nhat s duoc minh trao cho mot bi mat
23.(x+1)+19=65
giup mk voi mk dang can gap ai nhanh nhat mk tick cho
viet so tan cung cua cac so duoi day
a) 92k
b) 92k+1
c) 22005
MK DANG CAN GAP!!!!!!! AI TRA LOI MK TICK CHO!!!!CAM ON TRIEU LAN!!!
so sach -125/126 va -199/200
mk dang can gap, ban nao tra loi truoc mk t.i.c.k cho!
Bai 8 : ****
Chung minh rang :neu 4 x abc + deg chia het cho 83 thi abc x deg chia het cho 83
Ai giai dc mk tang cho 2 like mk dang can rat gap mong cac bn giup do !
cau 1 Cho 2 goc ke bu xOy va yOz, biet goc xOy=\(40^0\)
a) Tinh so do goc yOz
b) Ve tia Ot la tia p/g cua goc yOz. Tinh so do goc yOt, goc xOt
cau 2 Cho goc xOt=\(30^0\). Ve goc yOt ke bu voi xOt
a) Tinh so do goc yOt
b) Ve tia Ot la tia doi cua tia Ox.Chung minh tia Oy la tia p/g
cua goc tOz
Lam ho mk voi mk tick cho mk can lam