Tui nghĩ là b

có 9 người

9 nha ! 

Hok ~ tốt !

k cho mik nha !

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2-2=0 =)

= 0 nhé

1+1=????????????????????

1+1=2 ok? hỏi cho vui đúng ko

 Đ

hok tốt !

1 % + 1% = 2%

đúng

Tham khảo nha bạn 

https://www.youtube.com/watch?v=Ib_nH2ETyw0

 T  nhé bạn

có 9 đoạn thẳng

có 6 hình tam giác

-Có 10 đoạn thẳng:AB,AM,AN,AC;BM,BN,BC;MN,MC;NC

-có 6 hình tam giác:ABM,AMN,ANC,ABN,ABC,AMC

Nhớ k cho mình nha ^ ^

vào trang cá nhân của ng đó r ấn kb thôi

bn nhấn vào trang cá nhân của người bn định kb rồi bn ấn kb là xong

1+1+2+3+4+5+6+7+8+9+10=56

=56 nhé