DT 3 hình tròn là:

12 x 3,14 = 21,195m2

DT phần tô đậm là:

(4 x 12) - 21,195 = 26,805m2

Đ/s:..

I have two sister who are very good at computer science.

I wish I had come to his party

I used to play with my friendss on the field when I was younger.

Mấy câu kia anh chịu :v

If I had come to the party, I would have seen his girlfriend

She asked why I left so early

Mấy câu khác anh làm sau =)

khó quá =)

viết lại câu má ơi ;-;

ừ theo dõi nhiều quá cũng nhiều dung lượng