tren duong thang xy lay them 2012 diem M1, M2,M3,..,M2012 phan biet voi nhau va phan biet voi cac diem A, B,O,I co the ve duoc bao nhieu goc dinh C ma cac canh la cac tia goc C va di qua cac diem da c...

M

Minhml01

2 tháng 4 2018 - olm

tren duong thang xy lay them 2012 diem M1, M2,M3,..,M2012 phan biet voi nhau va phan biet voi cac diem A, B,O,I co the ve duoc bao nhieu goc dinh C ma cac canh la cac tia goc C va di qua cac diem da cho tren duong thang xy

#Toán lớp 6

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TT

Ta Thi My Le

19 tháng 3 2016 - olm

Cho goc xOy va goc yOz ke bu nhau, ve tia Om la tia phan giac cua goc xOy va tia On la tia phan giac cua goc yOz

a) Tinh goc mOn.

b) Ve tia Om^'la tia doi cua tia Om, neu goc zOm^' = 30 do. Tinh goc m^'Oy.

c) Ve duong thang d khong di qua diem O, tren duong thang d lay 2015 diem phan biet. Tinh so goc co dinh la diem O va cac canh di qua 2015 diem tren duong thang d.

#Toán lớp 6

0

DT

đàm thị mai giang

2 tháng 4 2016 - olm

Cho goc xOy va goc yOz ke bu nhau, ve tia Om la tia phan giac cua goc xOy va tia On la tia phan giac cua goc yOz

a) Tinh goc mOn.

b) Ve tia Om^'la tia doi cua tia Om, neu goc zOm^' = 30 do. Tinh goc m^'Oy.

c) Ve duong thang d khong di qua diem O, tren duong thang d lay 2015 diem phan biet. Tinh so goc co dinh la diem O va cac canh di qua 2015 diem tren duong thang d.

#Toán lớp 6

1

CB

CÁC BẠN TICK MÌNH NHA

2 tháng 4 2016

ta vẽ góc :

a)ta có góc mon = 90⁰

b)==> 75⁰

^{còn lại bạn tụ giải nha}

đến giờ ăn cơm rồi

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NT

Nguyễn Thị Ngọc Ánh

14 tháng 3 2018 - olm

cho tam giac ABC co BC=4cm. tren tia doi cua tia BC lay diem D sao cho BD=2cm/ a, tinh do dai CD; b,goi M la chung diem cua CD.tinh do dai BM;c,biet goc DAC bang 112 do .Ãxtia phan giac cua goc BAC va goc BAD. tinh so do goc xAy;d, tren nua mat phang bo la duong thang AC co chua diem D neu ve them n tia goc A phan biet khong trung voi cac tia ÂC,Ã,AB,Ay,AD thi co tat ca bao nhieu goc dinh A va Ay thu tu la

#Toán lớp 6

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NL

nguyen linh mai

25 tháng 7 2018

Tren duong thang xy lay 4 diem A,O,B,E sao cho O nam giua A va B , B nam giua O va E . Hay ke ten

a) cac cap tia doi nhau

b) cac tia goc A trung nhau , cac tia goc O trung nhau

c) co bao nhieu tia phan biet tren hinh ve

#Toán lớp 6

1

NT

Nguyen Thi Huyen

26 tháng 8 2018

undefined

a) Các cặp tia đối nhau là:

+ Ax và Ay

+ Ox và Oy

+ Bx và By

+ Ex và Ey

b) Các tia trùng nhau gốc A là: AO, AB, AE, Ay.

Các tia trùng nhau gốc O là: OB, OE, Oy.

c) Theo câu a ta có 4 cặp góc đối nhau

\(\Rightarrow\) Có tất cả 8 tia phân biệt.

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HD

Hoàng Diệu Anh

27 tháng 11 2016 - olm

Cau 5: Trong cac khang dinh sau, khang dinh nao dung, khang dinh nao sai?1.Ba diem phan biet la ba diem thang hang.2.Voi ba diem phan biet luon co hai diem nam ve cung phia doi voi diem con lai.3.Voi ba diem thang hang phan biet luon co hai diem nam khac phia voi diem con lai.4.Voi ba diem A,B,C thang hang thi diem B luon nam giua hai diem A,C.5.Co mot va chi mot duong thang di qua hai diem (phan biet) cho truoc.6.Hai duong thang phan biet thi song song voi nhau.7.Hai tia chung goc thi cung nam...

Đọc tiếp

#Toán lớp 6

1

TM

Trần Minh Châu

19 tháng 11 2017

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NY

nguyen yen chi

17 tháng 8 2016 - olm

cho hai duong thang a va b song song. tren duong thang a lay 10 diem phan biet, tren duong thang b lay 15 diem phan biet. hoi co the ve bao nhieu duong thang phan biet qua 2 trong cac diem da cho ?

#Toán lớp 6

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