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)

mot thung chua hang co dang hinh hop chu nhat chieu dai 320cm chieu rong 192cm chieu cao 224cm nguoi ta muon xep cac hop co dang hinh lap phuong vao trong thung chua hang sao cho cac hop xep khit nhau theo ca chieu dai va chieu rong va chieu cao cua thung canh cac hpop hinh lap phuong do co do dai lon nhat la bao nhieu?(sodo cac canh cua h inh lap phuong la 1so tu nhien voi don vi lacm

giup minh voi mai co tiet hoc roi 

mot hinh lap phuong va mot hinh chu nhat hinh hop chu nhat co the tich bang nhau va canh hinh lap phuong bang chieu cao hinh hop chu nhat. chu vi day hinh hop chu nhat la 26 dm, chieu rong kem chieu dai 5 cm. tinh the tich hinh lap phuong va dien tich toan phan cua hinh hop chu nhat.

mot hinh lap phuong va mot hinh chu nhat hinh hop chu nhat co the tich bang nhau va canh hinh lap phuong bang chieu cao hinh hop chu nhat. chu vi day hinh hop chu nhat la 26 dm, chieu rong kem chieu dai 5 cm. tinh the tich hinh lap phuong va dien tich toan phan cua hinh hop chu nhat.

mot hinh hop chu nhat va hinh lap phuong co the tich bang nhau . Canh hinh lap phuong bang chieu cao cua hinh hop chu nhat .Biet hinh hop chu nhat co chieu dai 12cm, chieu rong 3cm va dien tich xung quanh la 90cm2. tinh the tich moi hinh ?

xep mot khoi lap phuong nho canh 1cm thanh mot khoi dang hinh hop chu nhat lon co chieu dai 6cm ; chieu rong 4cm va chieu cao 3cm.

a)Tinh the tich hinh hop chu nhat xep duoc.

b)Tinh so khoi lap phuong nho dung de xep

thung bia cung danh hinh hop chu nhat co chieu dai 8cn,chieu rong 5cm,chieu cao 6cm.Nguoi ta dat mot khoi go hinh lap phuong vao trong hop do.Ti le the tich giua hinh lap phuong va hinh hop chu nhat la 1:10.Tinh:

a/ The tich thung bia hinh hop chu nhat

b/ The tich khoi go lap phuong

giup minh nha minh can loi giai gap.

mot hinh hop chu nhat co chieu dai 12m,chieu rong 4m,chieu cao 5m va mot hinh lap phuong co canh  bang trung binh cong cua chieu dai ,chieu rong ,chieu cao cua hinh hop chu nhat do tinh

a] the tich cua hinh hop chu nhat 

b} the tich hinh lap phuong

Mot hinh lap phuong va  mot hinh hop chu nhat co the tich bang nhau va canh hinh lap phuong bang chieu cao hinh hop chu nhat . biet day hinh hop chu nhat co chieu dai 16 cm va chieu rong 4 cm. tinh the tich hinh lap phuong va dien tich xung quanh hinh hop chu nhat