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
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
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
Mot cai hop co dang hinh hop chu nhat co chieu dai 36 cm chieu rong 24 cm va chieu cao 12 cm . Nguoi ta xep cac hinh lap phuong nhu nhau canh 3 cm vao day hop do . Hoi can bao nhieu hinh lap phuong nhu the
Mot cai hop co dang hinh hop chu nhat co chieu dai 36cm chieu rong 24cm chieu cao 12cm nguoi ta xep cac hinh lap phuong nhu nhau canh 3cm vao day hop do hoi can bao nhieu hinh lap phuong nhu the
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 co the tichbang the tich hinh hop chu nhat . canh hinh lap phuong bang chieu cao hinh hop chu nhat . biet hinh hop chu nhat co chieu dai 12 cm chieu rong 3 cm . tinh the tich moi hinh
mot cai hop dang hinh hop chu nhat co chieu dai 36cm, chieu rong 24cm va chieu cao 12cm. nguoi ta xep cac hinh lap phuong nhu nhau canh 3cm vao day hop do. hoi can bao nhieu hinh lap phuong nhu the
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.