Theo mk nghĩ:
cạnh của khối lập phương
đó là 2197 cm
đúng ko bn!
13
gui loi moi ket bn va tk mk nha
co ai muon ket bn voi mk ko ?
neu muon mk se tk
ta xep 2197 khoi hlp nho canh 1cm thanh 1 khoi hinh lap phuong moi lon hon. hoi hnh lap phuong lon dai bao nhieu cm
nguoi ta xep cac hinh lap phuong canh 1cm thanh 1 hinh lap phuong lon co dien tich toan phan la 600cm2. Sau do nguoi ta son tat ca cac mat cua khoi lon do. Hoi
a/ Co bao nhieu hinh lap phuong nho da dung de xep thanh hinh lap phuong lon?
b/ co bao nhieu hinh lap phuong nho chi duoc son dung 1 mat?
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)
ban AN co 36 khoi lap phuong . Ban xep thanh 1 khoi hop hinh chu nhat co moi chieu it nhat la 2 khoi lap phuong . Co bao nhieu cach xep nhu vay?
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
hoi phai dung bao nhieu hinh lap phuong nho canh 1cm de xep thanh hinh hop chu nhat co chieu dai 1,6dm,rong 1,4dm,cao 9cm
cho hinh lap phuong co the tich 1cm3 de xep hinh lap phong lon co 5dm nguoi ta son xung quanh hinh lap phong lon la mau xanh.Con 2 mat day la mau do hoi co bao nhieu hinh lap phong son mau do va bao nhieu hinh lap phong son 2 mau?
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
dien tich hinh lap phuong la 2197.tim 1 canh hinh lap phuong