cho 5 diem phan biet thang hang hoi co bn tia nhan 1 trong cac tia da cho lam goc va di qua it nhat 1 trong cac diem con...

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

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TT

Tran Thi Xuan

11 tháng 12 2015 - olm

trong cac khang dinh sau khang dinh nao dung A)2 tia chung goc la 2 tia doi nhau B)2 duong thang phan biet thi k co diem chung C)neu M la trung diem cua doan thang AB thi MA=MB D)co it nhat 1 duong thang di qua 2 diem A va B

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1

TH

Thanh Hiền

11 tháng 12 2015

Câu C

Đúng nhất !!!

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H

huynhnhu

30 tháng 7 2017 - olm

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...

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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...

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TM

Trần Minh Châu

19 tháng 11 2017

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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.

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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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NH

Nguyệt hà

25 tháng 11 2015 - olm

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!

#Toán lớp 6

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NH

nu hoang tu do

11 tháng 9 2016 - olm

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!

#Toán lớp 6

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NL

Nguyen Lam Anh

25 tháng 8 2017 - olm

1. Tren 1 duong thang xy lay 4 diem phan biet A,B,C,D hay chi ra cac tia doi nhau

2. cho 10 diem trong do khong co ba diem thang hang . Cu qua hai diem ta ve duoc 1 duong thang . Hoi co tat ca bao nhieu duong thang?

3. cho n diem trong do khong co ba diem nao thang hang . Cu qua hai diem trong so cac diem do ve duoc 1 duong thang. Biet rang co 435 duong thang tao thanh .Tim n?

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