nguoi ta lam mot cai hop khong nap bang bia cung dang hinh lap phuong co cạnh 1,5 dm .hoi dien tich bia can dung de lam hop bang bao nhieu dm^{2 (ko tinh mep dan )}

1 Tính hợp lý

215.62+42-52.215

minh can gap lam ai lam dung minh tich cho nhieu that la nhieu

Mot xi nghiep lam banh can dung 30000 chiep hop bang lam bia cung de dung banh. Hop co day lam mot hinh vuong canh 25cm va cao 6cm. Hoi can bao nhieu met vuong bia de lam du so hop bia tren.< Biet bang cac mep dan khng dang ke>.

Nhanh nhe minh dang can gap .

Mot hinh chu nhat co chieu rong la 142m vachieu dai gap 3 lan chieu rong . nguoi ta du dinh dong coc de rao xung quanh vuon , coc no cach coc kia 8 dm . Hoi can phai co bao nhieu coc de rao du manh dat do ?

lat minh lam cac chi can noi dung hoac khong

Nguoi ta lam mot cai hop khong nap bang bia cung dang hinh lap phuong co canh 1,5 dm . Hoi dien tich bia can dung de lam hop bang baonhieu nhieu de - ci - met vuong ( khong tinh mep dang )

co 200  qua cam va quyt, so cam bang 60% so quyt. hoi phai ban moi loai bao nhieu de so cam con lai bang so quyt con lai?

Giai gium minh nhe, minh dang can gap lam, nho cho ca cach lam nua day
 

mot nguoi tho xay phai xay mot buc tuong dai 6 m, rong 0,2m , cao 3m thi can phai dung bao nhieu vien gach dai 2 dm ,cao 0,5 dm , rong 1 dm . (Cac mach ho coi nhu khong dang ke )

ai lam nguyen duoc bai nay dau tien minh tick cho nha ?

tim 1 so biet rang lay so do tru di 34 thi bang 43 cong voi 58 so can tim la em gap lam

Nguoi ta lam 1 cai hop dang hinh hop chu nhat bang bia .Biet rang hop do co chieu dai 4 dm , chieu rong 4 dm va chieu cao 5 dm .Hoi neu co the xep duoc bao nhieu hinh lap qhuong 1 dmdm3 de day  cai hop do?