xep cac khoi lap phuong nho cach 1 cm thanh mot khoi dang hinh hop chu nhat lon co chieu dài 6cm chieu rong 4cm va chieu cao 3 cm 

a] tinh the tich hinh hop chu  nhat xep duoc

b] tinh so khoi lap phuong nho cung de xep

hoi phai dung tat ca bao nhieu khoi lap phuong nho co 1cm  de xep thanh mot khoi hinh hop chu nhat dai 1,6 dm chieu rong 1,4 cm

nguoi ta xep 1728 khoi lap phuong nho canh dai 1cm thanh mot hinh lap phuong lon tinh do dai canh cua khoi hinh lap phuong lon

Nguoi ta xep 960 khoi hinh lap phuong nho canh 1 cm thanh mot khoi hop chu nhat dai 12 cm; rong 10 cm.Sau do nguoi ta dem son 6 mat ngoai cua khoi hop vua xep duoc.Hoi co bao nhieu khoi hinh lap phuong nho duoc son 1 mat ?

nguoi ta dung 960 khoi hinh lap phuong nho canh 1cm de xep thanh mot hinh hop chu nhat lon. hoi the tich cua hinh hop chu nhat la bao nhieu?

xếp 6 khoi lap phuong nhua hinh lap phuong canh 3 cm thanh mot hinh hop chu nhat co chieu cao 6cm .Tinh s xung quanh cua hinh hop chu nhat xep duoc do 

Nguoi ta xep 960 khoi lap phuong nho canh 1 cm thanh mot khoi hop chu nhat dai 12 cm; rong 10 cm.Sau do nguoi ta dem son 6 mat ngoai cua khoi hop vua xep duoc.Hoi co bao nhieu khoi hinh lap phuong nho khong son mat nao ?

Mot thung chua hang co dang hinh hop chu nhat chieu dai 234cm , chieu rong 216cm , chieu cao 144cm . Nguoi ta muon xep cac hop nho dang hinh lap phuong vao trong thung chua hang do sao cho cac hop xep khit theo ca chieu dai, chieu rong , chieu cao cua thung . Canh cac hinh lap phuong co do dai lon nhat la bao nhieu ? ( so do cac canh hinh lap phuong la mot so tu nhien voi don vi la cm)

Nguoi ta xep cac hinh lap phuong nho co canh 1cm thanh mot hinh hop chu nhat co chieu dai 8cm , chieu rong 6cm  va chieu cao 5cm sau do quest son bon mat ben Hoi co tat ca bao nhieu hinh lap phuong nho duoc quet son