Nguoi ta lam mot cai hop khong co nap bang bia cung dang hinh lap phuong co canh 6,2 m.Tinh dien tich bia can dung de lam hop (khong tinh mep dan ).

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 )

nguoi ta lam mot cai hop khong co nap bang bia cung dang hinh lap phuong co canh 3,5 dm .tinh dien tich bia can de lam cai hop do 

( khong ke mep gian)

Nguoi ta lam mot cai hop ko co nap bang bia cung dang hinh lap phuong co canh 2,5 dm .Tinh dien tich bia can dung de lam hop [ko tinh mep dan]

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 )}

Nguoi ta lam mot cai hop ko co nap bang bia cung dang hinh lap phuong co canh 2,5 dm .Tinh dien tich bia can dung de lam hop [ ko tinh mep dan )

8 . nguoi ta lam mot cai thung ko nap bang bia cung dang hinh lap phuong co canh 2.5 dm. tinh dien tich bia can dung de lam hop (ko tinh mep dan )

nguoi ta lam môt cai hop ko co nap bang bia cung dang hinh lap phuong co canh 1,5m .hoi dien tich bia cung la bao nhieu dm2 khong tinh mep dan

lan lam mot cai hop bang bia dang hinh lap phuong co canh 8 cm . tinh dien tich bia de lam cai hop do .( khong ke mep dan)