PHẠM MAI LINH

mot be boi dang hinh hop chu nhat co kich thuoc mat ben trong la chiều dài là 20m chiều rộng 7m và chiều cao 1,2m. người ta muốn lát kín các mặt xung quanh và mặt đáy bên trong bể bơi bằng một loại gạch men trắng hình vuông cạnh 20cm vậy cần bao nhiêu viên gạch như thế

 

Phan Thi Hoa
22 tháng 3 2017 lúc 20:57

có ai biết ko

TFGIRL NHI
11 tháng 4 2017 lúc 20:01

404 chắc chắn với bn lun

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