ko có bít ,ko có bít. ko, ko có nhớ

1.draw .................................................................. 

chúc các bạn thành công nha

Chiều rộng khu đất đó là:

   248 : 4 = 62 (m)

Chu vi khu đất đó là:

   (248 + 62) x 2 = 620 (m)

                 Đáp số: 620m

Chúc các bạn thành công nha.

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chu vi tờ giấy màu xanh là:(9+5) x 2 =28(cm)

bye ko noi