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11 tháng 12 2015

Câu C

Đúng nhất !!!

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!!!!!~~~~~~~~~~~~~~

0
19 tháng 11 2017

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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


x z y m n 30'