Question

Người ta sơn toàn bộ mặt ngoài của một cái thùng tôn có nắp dạng hình hộp chữ nhật có chiều dài 8dm, chiều rộng 5dm và chiều cao 4dm . Hỏi diện tích được sơn bằng bao nhiêu đề-xi-mét vuông ? 

Answer 1

180

Answer 2

Diện tích xung quanh HHCN là:

      (8+5)*2*4=104

Diện tích mặt đáy là:

     8*5=40

Diện tích được quét sơn là:

    104+40=144

                    Đáp số: 144

Answer 3

144 la dung 10000000000000000000000000%

Answer 4

bài này là bằng 184 nha bạn.

Đúng thì k cho mình nha.

Chúc bạn học giỏi.

Answer 5

đáp án bài này là 184 nha các bạn

Answer 6

144 nha các bạn

Answer 7

kết quả là 144 cơ mà

Answer 8

vgggghbnhgggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg

Answer 9

144 là đúng đấy

Answer 10

= 144 

tk nhé

thanks